Kotlin Jobs

Saya ingin sebuah aplikasi media sosial khusus Android yang dibangun dari nol hingga siap rilis di Google Play. Fokusnya adalah pengalaman pengguna yang lancar, antarmuka modern, dan arsitektur backend yang mudah diskalakan. Fungsi inti yang saya butuhkan: • Pendaftaran & login (email, Google, atau Facebook) • Beranda/feeds real-time tempat pengguna dapat mem‐post teks, foto, atau video pendek • Fitur suka, komentar, dan follow/unfollow akun lain • Laman profil dengan foto, bio, dan daftar posting • Pencarian akun & tagar • Notifikasi push untuk interaksi penting • Panel admin web sederhana untuk moderasi konten dan pengguna Teknologi yang disarankan—namun terbuka jika Anda punya opsi lebih baik—antara lain Kotlin + Andro...

I’m building a fully native mobile application that lets drivers book automotive services The core flow is simple: users create an account (email, phone, or social login),check real-time availability, reserve a time, then pay securely without ever leaving the app. Both iOS and Android need to feel identical in look and speed, so I’m expecting Swift/SwiftUI on the Apple side and Kotlin with Jetpack on Android, backed by a single REST or GraphQL API. South African gateway must handle payments, supporting saved cards and one-touch checkout via Credit Card (VISA) or selected electronic transfers as well as PayPal etc. Please show me past work that demonstrates: • native builds (no hybrid wrappers) • secure login implementation • a live payment gateway...

We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, sett...

I need a secure, lightweight VPN application built for both and Android. The interface can stay minimal; stability, speed, and protocol flexibility are the real priorities. Core capabilities I expect: • Kill switch that reliably blocks traffic if the tunnel drops • Split tunneling so the user can choose which apps bypass the VPN • Support for the following protocols or transport layers: ssh, ssl, udp, v2ray, and websocket • A menu of multiple server locations that I can expand later through simple JSON or similar remote config No in-app user-authentication flow is required; the build should assume pre-provisioned profiles or embedded credentials. Deliverables: 1. Clean, well-commented source code (/Kotlin or Java/) 2. Signed release builds ready for TestFli...

I need a native Android application that lets my field marketing executives capture every customer inquiry, flag a lead as converted, update the sale’s current status, and instantly see how they are performing throughout the day—even when the signal drops out. The whole experience must feel light, launch quickly on modest devices, and never stall in a poor-network area. All records should be written to local storage first and then pushed to our server automatically through periodic background sync. If the phone is offline the user can keep working uninterrupted; once coverage returns the queued data syncs silently in the background. A compact on-device dashboard will summarise each executive’s day: total inquiries, conversions, sales status changes, and any other KPIs w...

I am building a utility-style Android application and need an experienced Kotlin developer to take it from concept to a stable, Play-ready release. The core of the job involves: • Designing clean, maintainable Kotlin code that follows Android best practices (MVVM, Jetpack components, coroutines). • Implementing a small feature set typical of tools apps—think background services, permission handling, and a concise, responsive UI built with XML or Jetpack Compose. • Integrating basic analytics and in-app settings so the user can customise the experience. • Connecting the app to a lightweight local data store (Room or DataStore) for persistence. • Packaging, signing, and preparing a release build that passes Google Play requirements. I will provide...

I am building a mobile-first social networking app with one clear goal: dramatically improve user engagement across my social media ecosystem. The app will serve as the hub where followers connect, share content, and keep returning, amplifying everything I post on Instagram, TikTok, and future channels. Core functions need to feel instantly familiar—think intuitive onboarding, a dynamic content feed, frictionless chat, real-time notifications, and lightweight rewards or gamification that keep people scrolling and sharing. Seamless social log-in, push-notification opt-ins, and in-app analytics are essential so I can track retention and tweak campaigns in near-real time. Because engagement is the metric that matters, every screen should encourage interaction. I’m open on the te...

When my Android app is minimized, any YouTube video inside the WebView pauses immediately. I need a clean, reliable way to keep playback running in the background the same way the regular Here’s the current state of things: • I’m loading the video inside an Android WebView. • I have already experimented with various WebView settings—JavaScript, media playback flags, setMediaPlaybackRequiresUserGesture =false, etc.—but nothing has stopped the pause on “home” or “recent-apps” actions. • No alternative implementations (custom players, exo-player wrappers, or different WebView engines) are in place, What I need from you: 1. A working code solution (Java or Kotlin) that lets the video continue playing when the user switch...

I’m building an Android-only application and need a clean, secure login flow that relies on one-time passwords sent strictly by SMS. Users will enter their phone number, receive the code, and gain access after successful verification—no usernames or emails involved. You’ll be responsible for wiring up the full authentication cycle, choosing a reliable SMS gateway, and writing the Android code (Kotlin or Java—your call) that: • accepts the phone number, • triggers the SMS OTP dispatch, • validates the returned code with sensible expiry and limited retries, • handles resend logic, and • stores / refreshes session tokens once the user is verified. Deliverables must include the documented source code, any backend or cloud function n...

Je dispose déjà d’une plateforme SaaS en PHP / MySQL ; l’objectif est maintenant de lui adjoindre une application mobile native Android et iOS entièrement en français. L’app devra communiquer avec mon back-end via API (REST / JSON) afin de récupérer et mettre à jour les données existantes. Fonctionnalités clés • Notifications push configurables depuis le SaaS • Mode hors ligne avec synchronisation automatique dès qu’une connexion est retrouvée • Prise de photo directe depuis l’application puis annotation libre (dessin, surlignage) avant envoi L’expérience utilisateur doit rester fluide et réactive, c’est mon critère num&ea...

I’m ready to turn a solid concept into a polished Android application focused squarely on business and productivity for my customers. The end goal is a Play-Store–ready build that lets users handle three core jobs in one place: • Task management – create, assign, track, and get notified in real time • Invoicing & payments – generate invoices, accept card / wallet payments securely, and surface simple analytics • Lightweight CRM – store customer profiles, log interactions, and view a history that ties back to tasks and invoices A clean, modern UI is key because my audience is external customers, not internal staff. They need to open the app and immediately understand what to do next without training. Here’s how I picture the fl...

We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, sett...

We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, sett...

I’m ready to turn my idea into a fully-functional Android application and need a developer who can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: ...

I’m building CareSync, an AI-assisted medication manager that puts caregivers first. The goal is a seamless experience on both Android and the web where a single profile, stored in Firebase Firestore, keeps every prescription, reminder and adherence metric perfectly in sync. The stack is locked in: • Python Flask will expose a clean, versioned REST API. • Firebase Auth secures every call, and Firestore holds all structured data. • Android is written in Kotlin, following Jetpack best practices and a repository-pattern clean architecture. • A lightweight web dashboard (React, Flutter Web or another modern framework you’re comfortable with) should consume the same endpoints so information mirrors in real time. Core functionality I need you to deliver...

I want to launch an Android-only mobile application whose core purpose is blogging so I can share lessons and insights from my online classes with students. The must-have capabilities for this first release are a smooth post-publishing workflow (text, images, short videos) and built-in shareability that lets readers pass any article straight to their social-media apps with a single tap. You are free to choose the tech stack—Kotlin, Flutter, React Native, or any modern Android-friendly framework—as long as the final APK is stable on current versions of Android and the codebase is clean and well-documented. A lightweight backend or Firebase setup for storing posts is fine; I simply need to create, edit, and delete articles from an admin side and have them display instantly for...

Quiero una aplicación nativa para Android que permita al usuario escribir el título de la pelicula o el fragmento de la misma , para obtener un resumen breve y tambien detallado en texto de lo que el director de la pelicula quiere expresar en la pelicula de lo que se supone que quiere decir con el argumento su significado. Estructura de negocio En Español – Modo gratuito: el usuario podrá ver la letra y un significado muy resumido; la pantalla mostrará anuncios (banner o intersticial, según recomiendes) como única fuente de monetización. – Modo premium: acceso a la explicación completa, sin anuncios. El pago debe gestionarse únicamente a través de Vizun; u la opcion de pago con targeta de debito...

Quiero una aplicación nativa para Android que permita al usuario escribir el título y la pelicula o el fragmento de la misma , obtener la letra completa del estidio de lo que quiere decir el argumento y leer su significado. Estructura de negocio – Modo gratuito: el usuario podrá ver la letra y un significado muy resumido; la pantalla mostrará anuncios (banner o intersticial, según recomiendes) como única fuente de monetización. – Modo premium: acceso a la explicación completa, sin anuncios. El pago debe gestionarse únicamente a través de Vizun; u la opcion de pago con targeta de debito o credito, necesito Stripe. Flujo deseado 1. Pantalla de búsqueda con autocompletado. 2. Resultados con le...

I need a warm, intuitive Android-only mobile app that lets users enjoy seamless conversations with a “friendly chat partner.” The core of the build is real-time communication on three levels: • Text chat • Voice chat • Video chat Please code natively for Android (Java or Kotlin via Android Studio) so the experience feels fast and integrated. I’m happy to rely on proven back-end services such as Firebase for authentication and real-time text, and WebRTC or a comparable library for voice and video—feel free to suggest the stack you’re most comfortable with. Key goals – Clean, welcoming UI that encourages users to start chatting within seconds – Reliable connection handling to keep calls and messages stable on spotty netwo...

Title: Senior Android Developer: Hybrid Computer Vision Pipeline (Local ML + Gemini API) Project Description: We are seeking a Senior Android Engineer to develop a modular, high-performance infrastructure for real-time video capture and analysis. The core of the project is a "Hybrid AI Routing Engine" that intelligently switches between on-device local processing and high-depth cloud analysis. This application is an R&D prototype that must be Play Store Ready, with a heavy focus on background stability, thermal management, and seamless connectivity transitions. Technical Specifications: 1. Camera Pipeline & Intelligent Routing: Implement CameraX to ensure maximum compatibility across various Android OEMs (Samsung, Pixel, Xiaomi, etc.). Develop a Routing Engine to ing...

I’m building a small showcase app for a school contest and need a polished Android solution that makes printed text friendlier for students with dyslexia. The flow is straightforward: the user opens the camera, points it at a page, and the app instantly recognises the words (OCR). As soon as the text is captured, each word is spoken aloud in sequence while that same word is highlighted on-screen in real time. The result should feel like a karaoke-style guide that lets the reader follow along word by word without losing their place. Must-have fundamentals • Android only — Kotlin or Java is fine, as long as it runs smoothly on common mid-range phones. • Real-time OCR (Google ML Kit, Tesseract, or any on-device library you prefer) with no dependency on an active int...

Saya ingin membangun sebuah aplikasi jejaring sosial Android (APK) yang berfokus pada fitur perpesanan. Versi pertama hanya perlu mendukung pesan teks satu-lawan-satu—cukup stabil, ringan, dan aman. Ruang lingkup utama: • Autentikasi pengguna (email / nomor ponsel) • Profil dasar dengan foto dan status singkat • Daftar kontak/teman yang bisa dicari • Layar chat real-time dengan pengiriman, penerimaan, dan notifikasi pesan teks • Panel admin sederhana untuk moderasi konten dan laporan bug Teknologi yang saya pertimbangkan meliputi Kotlin atau Flutter untuk sisi client, serta Firebase atau backend ringan setara untuk realtime database dan push notification. Jika Anda memiliki stack lain yang lebih efisien, silakan ajukan. Kriteria penerimaan:...

I need both the Android and iOS builds of my app brought up to the latest 6am Mart release so that all existing features continue working after the core upgrade. There is no redesign involved—the task is strictly functional. Primary areas to tackle • User authentication – the current login and token flow occasionally fails after the recent server-side updates. I need seamless sign-in on first try, consistent session persistence, and full parity between the two platforms. • Payment systems – Stripe and Razorpay SDKs must be bumped to their current stable versions and retested so every purchase, refund, and webhook callback runs without error on Android 13+ and iOS 17. • 6am Mart core update – integrate the official latest release, resolve any br...

I need a straightforward Android productivity app focused purely on task management. The idea is to give users a clean, lightweight way to create, edit, and track their tasks on the go, without the clutter of calendars or note-taking modules. Core scope • Users must be able to add tasks, group or prioritize them, mark them complete, and search or filter quickly. • Data should persist locally and sync smoothly whenever the device is online. • A simple, modern UI that feels native to the latest Android versions is essential. I’m open to your suggestions on the specific paradigm—whether classic to-do lists, a kanban-style flow, or smart reminders—as long as it stays intuitive and fast. Please build with current Android Studio, and structure the code so...

I need a straightforward Android application that lets my customers send money to me by bank transfer. After signing up or logging in with the classic username-and-password flow, a user should be able to choose an amount, see (or pre-fill) my banking details, and push the payment through an integrated bank-transfer API. Security is critical, so the credential flow must be encrypted end-to-end and the transfer requests signed or otherwise verified to prevent tampering. A lightweight backend—REST or Firebase Cloud Functions is fine—can manage authentication, session tokens, and payment-status webhooks. Please deliver: • Full Android Studio project (Java or Kotlin) • Secure username/password authentication flow • Bank-transfer API integration with success/...

I’m looking for an experienced mobile developer to build a brand-new Android application from the ground up. The core idea is defined and the UI flow is sketched, but I need you to turn those concepts into a fully functioning app that runs smoothly on current Android versions. You will handle everything from setting up the project in Android Studio, choosing the right architecture pattern, coding cleanly in Kotlin or Java, and integrating any required APIs or services. I’ll provide wireframes, branding assets, and a detailed feature list once we start; your role is to translate that into a polished, deployable APK and tidy, well-commented source code. Please factor in essential quality steps such as unit testing, responsive layouts for phones and tablets, and Play Store readi...

The project is to create a fully functional mobile application focused on gym-related use cases that will be released on both iOS and Android. I will provide the core concept and branding assets; you will turn them into a polished, store-ready product. Key expectations • Native or high-performance cross-platform codebase that delivers identical user experience on iPhone and Android phones. • Clean, modern UI that fits typical fitness / workout flows. • End-to-end build: architecture, coding, basic QA, and packaging for App Store and Google Play submission. • Clear, well-commented source code plus a concise setup/readme so I can maintain the project internally. Preferred stack React Native, Flutter, or Swift + Kotlin are all acceptable as long as the final ap...

Android CameraX & API Integration (We have 80% of the code logic ready - No R&D needed) We are looking for an experienced Android Developer to build a technical prototype (MVP) focused on real-time image processing for a Huawei P10 device. IMPORTANT: We are not reinventing the wheel. We have already completed the research phase. We will provide you with: 1. The Official SDKs and Documentation needed for the project. 2. Reference Code (80% of the logic): We have identified specific open-source samples (Google Samples) that already handle the image capture and API request logic. Your job is NOT research. Your job is to assemble these existing pieces into a stable background service and optimize it for the target device. Project Scope: Create a lightweight Android application that r...

I need a small Android proof-of-concept that launches the UIDAI FaceRD app via an explicit Intent, waits for the capture flow to finish, then receives the returned PID XML (biometric) data and renders it on-screen or writes it to logcat. Here is exactly what I expect: • An Android Studio project (Java or Kotlin) that targets any current SDK version compatible with FaceRD. • A signed, installable APK so I can test immediately. • On tap of a single button the app should:  1. Invoke with the correct action, extras and flags.  2. Handle the result in onActivityResult / ActivityResult API, extract the PID block, and show it clearly (raw XML is fine for the demo). Once I confirm the APK works, I will need the full, clean source code together with a sho...

I need a developer who can build a clean, stable Android application that lets users sit for fully-timed mock exams. The core of the project is the timer: each session must start, pause, resume, and submit automatically when time runs out, mirroring a real-world exam environment. For this first release I am only targeting Android, so please use a modern, well-supported tech stack (Kotlin or latest Java with Android Jetpack components). The UI should be lightweight and responsive, leaving room for future additions such as a question bank or analytics—but those extras are not in scope right now. Acceptance criteria • Home screen listing available mock tests • Start screen that clearly shows remaining time once the test begins • Automatic submission when the c...

Saya ingin menciptakan sebuah aplikasi Android dari titik nol—belum ada desain, wireframe, atau prototipe sama sekali. Saya butuh seorang developer yang siap membantu mulai dari penjajakan ide, menyusun alur pengguna, merancang antarmuka, hingga menulis kode native (Java atau Kotlin) dan menyiapkan build siap rilis di Google Play. Ruang lingkup yang saya harapkan: • Diskusi kebutuhan & brainstorming fitur inti. • Pembuatan sketsa UI/UX dasar lalu iterasi hingga disetujui. • Pengembangan aplikasi Android lengkap dengan struktur kode bersih dan dokumentasi singkat. • Pengujian fungsional di berbagai ukuran layar. • File sumber (kode, aset, dan desain) plus APK final. Jika Anda terbiasa menggunakan Android Studio, Material Design, dan praktik cle...

Saya membutuhkan bantuan untuk pengembangan sebuah aplikasi Android yang memiliki fitur utama pembelian dalam aplikasi (in-app purchase). Fokus saya adalah mendapatkan versi fungsional yang siap diuji di perangkat nyata dan nantinya bisa dipublikasikan di Google Play. Apa yang saya harapkan: • Desain arsitektur aplikasi yang jelas, termasuk flow in-app purchase sesuai kebijakan Google Billing v6. • Implementasi UI/UX sederhana namun rapi; mock-up dasar sudah cukup pada tahap awal. • Kode sumber bersih (Kotlin atau Java) lengkap dengan dokumentasi singkat agar mudah dipelihara. • Paket APK atau AAB siap install beserta petunjuk build. Nilai tambah jika Anda dapat menyarankan optimasi performa, sistem notifikasi, atau integrasi media sosial di fase berikutny...

Native iOS + Android Developer (Swift + Kotlin) — API-Based App --------------------------------------------------------------------- OVERVIEW --------------------------------------------------------------------- We are hiring a native mobile developer to build iOS and Android apps for an EXISTING web-based platform. The backend, APIs, database, and logic are already complete. The web CRM + marketplace will be the reference. Your job is to implement the mobile apps based on our instructions. This is NOT backend work. This is NOT product design. This is NOT guessing requirements. --------------------------------------------------------------------- WHAT YOU WILL DO --------------------------------------------------------------------- - Build native iOS app using Swift - Build na...

Android IPTV Streaming App Development Project Requirements Core Features Needed: Device Authentication with my Laravel Backend MAC address-based device registration 7-day free trial system Payment activation via backend API Content Streaming ( playing external playlists from clients ) Live TV channels (HLS/MPEG streams) Movies (VOD) TV Series with seasons/episodes ExoPlayer integration Playlist Support Xtream Codes API M3U/M3U8 playlists XUI Panel support Multiple playlists per user (add/edit/delete) VPN Integration OpenVPN support Manual certificate upload (.ovpn files) Username/password configuration Auto-connect option User Interface Material Design dark theme Home, Live TV, Movies, Series, Settings screens Video player with custom controls Continue watching feature Favo...

Je veux transformer mon idée en une première version d’application mobile Android, simple mais solide, centrée sur un module de paiement en ligne entièrement fonctionnel. Je fournirai l’arborescence d’écrans, le logo et les couleurs ; vous prenez en charge la réalisation technique et la publication en test fermé sur Google Play Console. Livrables attendus : • Code source complet (Kotlin ou Flutter accepté) • APK installable + build de production • Intégration sécurisée d’un prestataire de paiement (Stripe, PayPal ou équivalent) avec gestion des confirmations et erreurs • Tests unitaires de la séquence de paiement • Breve documentation d&rsq...

I urgently need a seasoned Android engineer to take a brand-new idea from concept through to a fully working application. The exact feature set is still open for discussion, but whatever we build must run smoothly on both the latest devices and older phones and tablets without breaking UI or functionality. You will handle architecture, coding, testing, and deployment to Google Play, providing me with the full source code and a signed APK at each milestone so I can track progress. Expect to optimise for performance, follow modern Material guidelines, and implement solid backward-compatibility strategies—whether that means leveraging AndroidX, shrinking the APK with ProGuard/R8, or tailoring layouts with resource qualifiers. Clear, well-commented Kotlin or Java, Git-based version...

I am looking for a developer who can turn my idea for an Android-only social networking app into a polished, launch-ready product. The core experience should let users register quickly, build a profile, connect with others, share posts (text, photo, or video), react or comment, and chat in real time. A clean Material design, smooth performance on recent Android versions, and push notifications are essential. I plan to monetise later, so the codebase needs to be structured for easy integration of ads or in-app purchases. If you are comfortable working natively in Kotlin or Java and have handled cloud back ends such as Firebase, Supabase, or a comparable stack, your expertise is exactly what I need. Security best practices, scalable database design, and simple analytics hooks all matter to ...

I want to launch a non-custodial crypto wallet that covers the essentials from day one. Users must be able to send and receive coins or tokens, browse a complete transaction history, and restore access at any time through a secure backup flow (seed phrase or encrypted file). The first release targets Android and a browser-based version. Feel free to use Kotlin, Flutter, React Native, or similar for mobile, and React/ (or comparable) for the web client, so long as the codebase is clean and well-documented. Security should follow a solid “standard” approach: client-side key generation, AES-256 encrypted private keys, optional PIN/biometric unlock, HTTPS everywhere, and no server-side custody. Compliance with common audits or libraries (e.g., WalletConnect, ) is welcome but not...

I’m building a full-stack, fully secure money-exchange platform that spans Android, iOS, and a responsive website. The public landing screen must fetch and display up-to-the-second buy/sell rates even for guests, then invite them to sign in. Authentication will rely on Google Authenticator one-time codes; every sensitive endpoint must be locked behind this 2-factor flow. Once inside, customers need a clean dashboard where they can: • place buy orders • place sell orders • review a complete, filterable transaction history Behind the scenes I’ll need an admin console that lets me adjust spreads manually or, at the flip of a switch, pull live forex data from an API (feel free to recommend the most cost-effective feed). All price changes should propagate ...

I need an Android-only time management app whose core purpose is to keep users on schedule through smart notifications and reminders. The flow is simple: a user sets a task, defines a deadline or ideal start time, and the app nudges them at just the right moments. You are free to choose the framework (native Kotlin/Java or a cross-platform option that still compiles cleanly for Android) as long as the final build is stable, responsive, and Play-Store-ready. I’ll want both an installable APK and full, well-commented source so I can iterate later—potentially adding task scheduling or full time-tracking modules down the road. Key expectations • Clean, modern UI that feels intuitive on current Android versions • Reliable foreground and background notification ha...

I want a clean, lightweight Android application that my field sales team can open, log in with their company email and password, and capture secondary-sales orders on the spot. Two roles matter to me: • Salesman – enters demand, adjusts MRP-based discounts, and submits the order. • Manager – reviews or edits what the salesman submitted and can pull quick reports. The core flow is simple: after login the salesman selects the customer, adds products with quantities, sees the auto-calculated total, applies any discount by percentage or value, and taps “Generate Order”. The app must immediately create a branded PDF containing all line items, MRP, discounts, net values, date/time, and the salesman’s details. That PDF should save locally and be shareab...

I’m ready to turn my idea into a fully-functional Android application and need a developer who can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: ...

I run a small personal-training gym and need a no-nonsense mobile app, published on both iOS and Android, that lets our members book one-on-one sessions with ease. The only core feature is personal-training booking, and after any slot is reserved the app must issue a session reminder. Members will create an account and log in before they can schedule, so a simple, secure registration flow is essential. Most of our clients are 60 + years old, so the interface has to be crystal-clear: large, high-contrast buttons, uncluttered screens, and navigation that never leaves them wondering what to tap next. Four or five screens total should cover it—welcome/login, calendar, confirmation, and settings—nothing more. I’m happy for you to work in Flutter, React Native, Kotlin Multipl...

I’m ready to turn my idea into a fully-functional Android application and need a developer who can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: ...

I want to ship a lean Android + iOS application that can 1) establish a Bluetooth Low Energy link to my peripheral and move data back and forth, and 2) instantly push out a user-defined BLE packet the moment the phone detects an incoming call. The BLE work is classic data-transfer: discover the device, pair, subscribe to characteristics, then read/write packets on demand. Stability in the background is critical; the link must stay alive (or reconnect quickly) when the screen is off. When a call arrives the app should listen to the system broadcast (Android) or CallKit/VoIP push workaround (iOS), pull the string the user previously defined, and write it over the existing BLE connection without visible delay. Please send a concise, detailed project proposal outlining: • your ...

I’m ready to commission an Android-only audiobook application and need an experienced mobile developer to take it from concept to Google Play release. At its heart, the app must stream and locally cache audiobooks, let listeners drop unlimited bookmarks while they listen, and handle one-tap downloads for fully offline playback. Monetisation is essential: new titles will be sold individually, so please wire the catalogue to Google Play Billing for in-app purchases. Authentication will be straightforward email-and-password login—either a lightweight back-end you spin up or a Firebase Auth integration works for me so long as it’s secure and quick for the user. Core flow I have in mind • Launch ➜ user signs up or logs in • Library screen lists available au...

I want to bring a brand-new social networking idea to life on Android. The concept, user flows, and core screens are already sketched; now I need a developer who can turn them into a polished, production-ready app. Here’s the outline of what I’m after: • Full Android build in Kotlin (Java is acceptable if you have strong reasons). • Standard social features—secure sign-up/login, user profiles with photos, a simple post feed, likes/comments, and real-time chat or messaging. • Cloud-based back-end: I’m leaning toward Firebase for authentication, Firestore/Realtime Database, and push notifications, but I’m open to alternatives if you can justify them. • Clean architecture, modular code, and clear naming so another dev can jump in later if nee...

I’m ready to move forward with a project that pairs a full-featured Android app with a matching website. The core requirement both share is secure, reliable user authentication—think sign-up, login, password reset, and the usual account-management flows. Everything else about the product’s purpose, design language, and long-term roadmap is still flexible, so I’d like to refine those details together once you’re on board. I don’t have a fixed technology stack in mind; whether you prefer Kotlin in Android Studio, Flutter, React Native, or another modern framework on the mobile side—and Django, Laravel, Node.js, or something cloud-native on the web side—I’m open to your recommendations. What matters most is clean architecture, maintainabl...

Job description: We’re looking for a senior-level developer who can build high-performance web and mobile applications for a company based in Australia. You need to be product-minded, detail-driven, and capable of owning features end to end. This is not a junior role and not a hand-holding environment. Experience Required: 5+ years in production environments Core Stack Angular (12+) for web Flutter for cross-platform mobile Swift for native iOS development You don’t need to be elite in all three, but you must be strong in at least two and comfortable working across them. What you’ll do Build scalable web and mobile applications Translate UI/UX into clean, high-performance code Architect reusable components and systems Integrate APIs and manage async data flows Optim...

## Full Project Plan – Sports Prediction Mobile App ### Product Goal Develop a data-driven mobile application that provides real-time sports match predictions using advanced statistical models and AI. The app will deliver professional insights, personalized notifications, and operate under a VIP subscription model. --- ## Supported Sports (MVP) - Football (Soccer) - Basketball --- ## Real-Time Sports Data The application will integrate with a third-party sports data API (to be selected by the developer) in order to display: - Live match scores - Team lineups before games - Key match events such as goals, fouls, substitutions, and other major incidents - Live match statistics --- ## Prediction Model The prediction system will be based on a combination of...