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I need an Android application that allows users to send and receive funds quickly, track their full transaction history, and handle multiple currencies inside a single, clean interface. Security is critical: log-in and every sensitive action must be gated by a traditional password plus a four-digit PIN flow. Core scope • Android-only build, coded in Kotlin or Java and compiled in Android Studio. • Real-time money movement between verified accounts. You may connect to an existing payment gateway or build REST endpoints; either way the transfer must settle instantly in a sandbox environment. • Persistent ledger so users can open “History” and filter by date, currency, or status. • Multi-currency wallet: balances, FX conversion at live rates, and clear currency symbols throughout the UI. • Password + PIN authentication screen, with secure token storage (EncryptedSharedPreferences / Keystore). Deliverables 1. Source code checked into my private Git repository. 2. Signed, installable APK for testing. 3. Postman (or equivalent) collection documenting every API hit. 4. One-page setup guide so another developer can run the project locally. Acceptance criteria • New user can register, set password and PIN, deposit test funds, and complete a transfer in under three minutes. • Transaction list reflects each step with timestamp and currency. • All sensitive data at rest is encrypted; no plain text credentials in logs. If you have previous fintech or wallet experience, mention the stack you used and any compliance standards you followed so I can gauge fit.
ID do Projeto: 40291641
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Ativo há 29 dias
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***** Secure Android Multi-Currency Wallet App Development *** Hello, I can develop a secure Android wallet application that enables users to send and receive funds, manage multiple currencies, and track complete transaction history within a clean, intuitive interface. The app will be built in Kotlin using Android Studio, with strong authentication including password + PIN verification and secure credential storage using Android Keystore and encrypted preferences. For payments and wallet operations, I can integrate a sandbox-ready gateway such as Stripe or PayPal, along with live FX rates from APIs like Open Exchange Rates. Users will have access to real-time transfers, a detailed ledger with filters (date, currency, status), and clear multi-currency balance displays. Let’s chat… Thanks
$1.400 USD em 7 dias
9,5
9,5

Hello We are Ominfowave Software Services Pvt. Ltd., and we have an expert mobile application development team with 10+ years of experience in building reliable, high-quality apps. ? Our Core Expertise •Android App Development (Kotlin / Native) •iOS App Development •Flutter & FlutterFlow (Cross-platform) Our team understands not just development, but also performance, user experience, scalability, and timely delivery. ? What We Can Deliver ✔ Social media integrations (Facebook, Google, Twitter, etc.) ✔ Google APIs (Maps, Places, FCM, YouTube, Analytics) ✔ Offline & cloud database solutions (SQLite, MySQL, Realtime DB) ✔ Secure payment integrations (Stripe, PayPal, Braintree) ✔ Ad monetization (AdMob, Appodeal, MobVista) ✔ In-App Purchases ✔ Location tracking & real-time features ✔ Chat & messaging applications ? App Types We’ve Built •Social Media Apps •Shopping & eCommerce Apps •Job Portals •Taxi / Carpooling Apps •VPN & Utility Apps •Travel & Booking Apps •Live Streaming Apps •AI & Machine Learning–based Apps ? Why Work With Us •10+ years of hands-on experience •Clean, scalable & secure code • Clear communication & regular updates • On-time delivery with quality assurance • Long-term support after project completion We would love to work with you and build a long-term, trusted business relationship. Let’s discuss your idea and turn it into a successful application Warm regards, Vishal Nasit Ominfowave Software Services Pvt. Ltd.
$225 USD em 7 dias
8,4
8,4

I HAVE BUILT SECURE DIGITAL WALLET & INSTANT PAYMENT APPS BEFORE—DELIVERING FAST TRANSFERS, MULTI-CURRENCY SUPPORT, AND BANK-GRADE SECURITY IN A CLEAN AND INTUITIVE MOBILE EXPERIENCE. I can develop your Android-only wallet application using Kotlin in Android Studio with a secure and scalable architecture. The app will enable instant fund transfers, full transaction tracking, and a seamless multi-currency wallet within a simple and modern interface. Core Features • Secure user registration with password + 4-digit PIN authentication flow • Real-time money transfers between verified users via secure REST APIs or payment gateway sandbox • Multi-currency wallet with balances, live FX conversion, and proper currency symbols • Transaction history ledger with filters for date, currency, and status • Encrypted storage using Android Keystore & EncryptedSharedPreferences • Secure token handling and no sensitive data logged User Roles • User: Register, manage wallet, deposit test funds, send/receive transfers, view history • Admin (API/Backend level): Monitor transactions, manage users, control currency and system settings. Additionally, I will provide 2 YEARS OF FREE ONGOING SUPPORT post-launch, along with full project documentation and complete source code ownership.
$140 USD em 7 dias
8,5
8,5

YOU NEED A FINTECH WALLET BUILT SECURE FROM THE GROUND UP NOT PATCHED SECURE AFTER THE FACT. Plan D Studios 12+ years building mobile apps, payment integrated platforms, and custom software. Android development in Kotlin is active for us, not dusted off for this bid. Here's our approach:authentication built on Android Keystore with EncryptedSharedPreferences for token and PIN storage no plain text credentials anywhere in the codebase or logs. Password + PIN flow implemented as a proper dual gate, not a UI trick over a single auth layer. REST endpoints built or integrated against your chosen payment gateway for real time sandbox settlement. Multi currency wallet with live FX rate pulls and clean currency formatting throughout the UI. Transaction ledger with timestamp, currency, and status filtering persistent, accurate, fast. We follow OWASP Mobile Top 10 as baseline security practice on every fintech build. Signed APK, private Git repo with clean commit history, full Postman collection, and a one-page local setup guide all standard in our handover package. Another developer can pick this up without calling us. That's intentional. Quick question: do you have a payment gateway or sandbox environment already selected, or do you need a recommendation based on your target markets and currencies? Message us and let's build it right. Regards, Haider
$430 USD em 22 dias
7,4
7,4

Hi The most critical part of a wallet or money transfer app is not just sending funds but making sure the transaction flow and security layers are designed correctly from the beginning. If authentication token handling and transaction logging are not structured properly it can create serious security risks and unreliable balance updates. I have experience working on fintech style applications where secure authentication encrypted storage and reliable transaction tracking were essential. I can build the Android application in Kotlin using Android Studio with a clean multi currency wallet interface secure password and PIN authentication using Keystore based encrypted storage and a persistent transaction ledger with filtering. I will also structure the API layer for real time transfers integrate a payment sandbox or REST backend and document all endpoints in a clear Postman collection while keeping the code organized and easy for future developers to maintain. Do you already have a preferred payment gateway or backend service for handling the sandbox transfers or should I recommend the most suitable architecture for this project? If you find my offer satisfactory, we would be happy to discuss your project in detail. Best Regards, Hammad Hassan
$140 USD em 7 dias
7,1
7,1

Hello, As a seasoned technology expert with over a decade of experience, including proficiencies in Node.js, Python, and PHP, I'm uniquely equipped to deliver the secure, lightweight, and easy-to-use Android Money Transfer App you're looking for. My extensive knowledge of fintech and compliance protocols will be invaluable regarding your project prerequisites. Regarding mobile development, I have a broad range of expertise especially in React Native and Flutter which aligns perfectly with your Android app development requirements. Additionally, having worked on numerous projects that needed stringent security measures, I am well aware of the significance of secure data storage in maintaining user's trust. My understanding of EncryptedSharedPreferences and Keystore practices will ensure that no sensitive personal information is ever stored unencrypted and no plain text credentials find their way into log files. With the optimal collaboration between your vision and my technical prowess, we can create a high-performing app transforming money transfer for your users while ensuring utmost security throughout the process. Let's get started! With Regards! Divya
$250 USD em 7 dias
6,8
6,8

Hello Sir, Imagine a state-of-the-art money transfer app tailored precisely to your requirements—would you like to see a demo even before we engage? I specialize in developing secure, high-performance Android applications using Kotlin and Java, with proven expertise in fintech solutions that adhere to rigorous compliance standards. Let's discuss how I can create this robust app for you, ensuring seamless transactions and an intuitive user experience, along with a demo to illustrate the potential transformation. Regards, Smith
$140 USD em 7 dias
6,6
6,6

Hello I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
$450 USD em 7 dias
6,5
6,5

I have 21 years of experince, Principal Software engineer, I have extensive experince with Java and kotlin development, with payment gateway, location based tracking, booking, I have extensive experince with API development and Integration, users can persist history with efficient query and database transaction, we can also have multi wallet currency and other features. I have understood your requirements and can deliver fully.
$140 USD em 7 dias
6,0
6,0

Hi There!!! ★★★★ (Android Money Transfer App) ★★★★ I understand you need a secure Android app for sending and receiving funds, tracking transaction history, and handling multiple currencies with password + PIN authentication. The app must provide instant transfers, persistent multi-currency wallets, and encrypted storage, with source code, signed APK, and API docs delivered. ⚜ Android build using Kotlin or Java in Android Studio ⚜ Real-time money transfers with secure REST endpoints ⚜ Multi-currency wallet with live FX conversion ⚜ Transaction history with filters by date, currency, and status ⚜ Password + PIN login with secure token storage ⚜ API documentation via Postman collection ⚜ Clean, maintainable code ready for future compliance checks With 9+ years experience in Android fintech apps, Kotlin/Java, and secure wallet solutions, I deliver high-quality, compliant apps fast. I can start immediately and ensure smooth testing. Warm Regards, Farhin B.
$110 USD em 10 dias
6,5
6,5

I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$140 USD em 7 dias
5,7
5,7

Hi, I understand you need a secure Android application for multi-currency money transfers, complete with transaction history, FX conversion, and strong authentication using password plus a four-digit PIN. The goal is to enable fast, real-time transfers while keeping user data fully encrypted and the interface clean and intuitive. My approach is to build the app in Kotlin using Android Studio, integrating either a sandbox payment gateway or custom REST endpoints for instant settlement. I will implement persistent local storage for transaction history, real-time FX rates for multi-currency wallets, and encrypted credential management using Android Keystore or EncryptedSharedPreferences. The app will include a fully functional registration, login, and transfer flow with clear feedback for users. Before delivery, I will test all transfers in sandbox mode, verify FX calculations, confirm history logging and filtering, and validate encryption and PIN/password flows to ensure the app meets both security and usability standards. Best, Justin
$140 USD em 7 dias
5,9
5,9

Hello! I am glad to say that i have already developed an Android money transfer application that allows users to send and receive funds, manage multiple currency balances, and track their full transaction history through a secure and easy to use interface. The goal is to create a reliable Android app where users can move money instantly between verified accounts while maintaining strong authentication and transaction security. My focus will be on delivering a secure Android application featuring: real time money transfer between verified accounts through a secure gateway or API layer, multi currency wallet with live exchange rate conversion and clear balance tracking, persistent transaction ledger with filtering by date, currency, and transaction status, and strong authentication flow using password plus four digit PIN verification. Sensitive data and tokens will be protected using Android secure storage mechanisms to ensure user account safety. I specialize in Android development using Kotlin and scalable backend integration for financial applications. My focus will be on building a clean wallet interface, reliable transaction flow, and a secure authentication system that protects users while keeping the experience fast and intuitive. Let’s connect to discuss the payment workflow and development roadmap. Best regards, Nikita Gupta.
$300 USD em 22 dias
5,6
5,6

Hi! I specialize in Android fintech apps with 9+ years of experience building secure, multi-currency wallets and real-time money transfer systems using Kotlin and Java. Here's how I can help: * Develop an Android app with password + PIN authentication, encrypted storage, and instant fund transfers * Implement multi-currency wallets with live FX conversion, transaction history, and filterable ledgers * Deliver source code in your private Git repo, signed APK, API documentation, and setup guide Do you have a preferred payment gateway for integration, or should I design REST endpoints for sandbox transfers?
$200 USD em 7 dias
5,4
5,4

I’m an Android developer with 7+ years of experience in Kotlin/Java, specializing in secure fintech apps. I can build your multi-currency wallet with real-time transfers, PIN/password security, encrypted storage, and a clear transaction history, delivering a tested APK with full source and API documentation.
$140 USD em 7 dias
5,5
5,5

❗❕‼️⁉️ Hello ⁉️‼️❕❗ I understand you need an Android money transfer app with multi-currency support, secure password + PIN authentication, and real-time transaction tracking. I HAVE SOME QUESTIONS REGARDING THE PROJECT SEND ME A MESSAGE FOR MORE DISCUSSION ⇆ ⇆ ⇆ ➷ Build Android app in Kotlin/Java with secure login and PIN authentication ➷ Implement real-time fund transfers, multi-currency wallets, and persistent transaction history ➷ Integrate payment gateway or REST endpoints, encrypt sensitive data, and provide full API documentation ⇆ ⇆ ⇆ With 7+ years of experience in Android development, Kotlin/Java, and fintech solutions, I deliver secure, user-friendly, and compliant apps. I’ll design the architecture, implement transfers and wallet features, and ensure security best practices. My approach is to build a sandbox-ready app, document APIs, and test thoroughly for reliability. Let’s chat to discuss your requirements and timeline. Best Regards, Shaiwan Sheikh
$127 USD em 13 dias
4,9
4,9

As an experienced Android and Mobile App Developer, I am capable of expertly handling your project to develop a highly secure and efficient money transfer application. In my illustrious 9+ years' career, I have successfully developed numerous payment and wallet systems utilizing Java or Kotlin associate with the Android Development environment, making me the ideal candidate for this project. One notable experience is developing a similar application to yours, incorporating safeguard features such as EncryptionSharedPreferences and Keystore for secure data storage. Moreover, my team at *Name of the Company*, which consists of skilled professionals versed in various development technologies, has proven abilities in ensuring cross-platform compatibility and top-notch security measures for all our projects. With their expertise, we can provide you with a comprehensive project deliverable fulfilling all your expectations: from proper documentation of each API hit in Postman collection to setting up one-page guide for the local testing. Our services further extend beyond project delivery; we ensure clients' satisfaction by offering free post-delivery support for three months. We prioritize quality workmanship. Let us actualize your idea into a functional, user-friendly reality that meets not only your requirements but also strict compliance standards. Join hands with us, and we guarantee you an effectively-costed solution without compromising on quality or performance.
$140 USD em 7 dias
5,3
5,3

With my extensive experience in mobile development, I believe I am the perfect candidate to create your Android Money Transfer App. Over the last 10 years, my team and I have honed our skills in Android App Development and Java which are essential for this project. We have also managed to maintain a top-notch reputation, thanks to our fast turnaround and 7-days-a-week availability; reliability that your project can depend on. Finally, our dedication to client satisfaction is unwavering. The success of your project is as important to us as it is to you, making us committed to delivering quality work that meets all the outlined needs. It would be an honor to put my skills and experience towards building your Android Money Transfer App. Let me turn your vision for this project into reality — choose me and let's create a solution that provides a seamless experience for users while prioritizing their security!
$499 USD em 15 dias
4,7
4,7

Hi There, I understand you need an Android application for seamless fund transfers, supporting multiple currencies, with a focus on security. I can deliver a robust solution that meets your requirements, including real-time money movement, a persistent ledger, and a secure authentication mechanism. I am Kanzah Afaq, a software developer with over 7 years of experience in Java and Mobile App Development. My expertise includes Kotlin, Software Architecture, Payment Gateway Integration, and REST API development, making me well-suited for your fintech application. I have previously developed similar wallets that comply with industry standards, ensuring safety and efficiency in transactions. My stack includes Kotlin and Android Studio, providing clean and maintainable code. Portfolio: https://www.freelancer.com/u/KanzahAfaqAhmad I look forward to discussing how I can contribute to your project. Thank you, Regards, Kanzah Afaq
$250 USD em 7 dias
4,3
4,3

Building a secure, multi-currency money transfer app on Android is exactly the kind of fintech challenge I specialize in—I've built similar payment platforms using Kotlin with MVVM architecture, Retrofit for REST API integration, and the Android Keystore system for bulletproof credential storage. For your project, I'll implement the password + PIN authentication flow using EncryptedSharedPreferences, connect to a payment gateway like Stripe or Flutterwave for instant sandbox settlements, and build a Room-backed transaction ledger with filterable history by date, currency, and status. Live FX rates will feed into the multi-currency wallet via a reliable exchange-rate API. I can start immediately and will deliver clean, well-documented Kotlin source code, a signed APK, a full Postman collection, and the setup guide you've outlined.
$30 USD em 1 dia
4,5
4,5

Khobar, Saudi Arabia
Membro desde mar. 11, 2026
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