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I'm seeking an experienced mobile app developer to create a secure, encrypted vault application for both iOS and Android platforms. The app needs to be built with advanced encryption standards (AES-256) to ensure the highest level of security for user documents. Key features include: - Encrypted vault for document storage - Will generation module - Nominee management: - Add/Edit/Remove nominees - Set nominee permissions - Notification to nominees upon changes - Death-triggered access release system Ideal candidates should have: - Proven experience in developing secure mobile applications - Expertise in implementing advanced encryption protocols - Familiarity with iOS and Android development - Strong understanding of user permission systems and notification mechanisms Please provide examples of similar work done.
ID do Projeto: 40351111
53 propostas
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Ativo há 12 dias
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53 freelancers estão ofertando em média ₹37.897 INR for esse trabalho

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.
₹22.500 INR em 7 dias
8,4
8,4

I WILL BUILD A MILITARY-GRADE SECURE VAULT APP WITH TRUSTED ACCESS CONTROL & ENCRYPTION! I have 12+ years of experience in mobile app development and secure systems, I have built similar applications involving encrypted storage, role-based access, and sensitive data workflows. Relevant Experience: Developed secure document vaults, fintech apps, and privacy-first platforms with AES-256 encryption, biometric auth, and controlled data sharing. Proposed Workflow: User registers → Creates encrypted vault → Uploads documents (AES-256 encryption) → Adds nominees & sets permissions → Updates trigger notifications → Death-trigger system verifies condition → Secure access granted to nominees. User Roles: Admin (system monitoring) User (vault owner) Nominee (restricted/conditional access) Core Features: End-to-end AES-256 encrypted document storage Will generation module with secure templates Nominee management (add/edit/remove + permissions) Event-triggered secure access release system Real-time notifications & alerts Biometric/PIN authentication for enhanced security I follow a structured approach: wireframing → secure architecture → development → rigorous testing → deployment, ensuring compliance and reliability.
₹75.000 INR em 35 dias
8,3
8,3

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert
₹25.000 INR em 7 dias
6,9
6,9

Hi there, I have read your project requirement. You need a secure cross-platform vault application (iOS & Android) with AES-256 encryption, document storage, nominee management, will generation, and a controlled access-release system. We can build this using Flutter for a single codebase with a secure backend, implementing AES-256 encryption (on-device + server-side), role-based nominee permissions, secure key management, and notification workflows. The app will follow best practices for security, scalability, and compliance. A few quick questions: ================== Should encryption keys be fully user-controlled (zero-knowledge) or managed via backend? How should the death-trigger system be validated (manual trigger, inactivity, legal verification)? Do you need biometric authentication (Face ID / Fingerprint)? Any compliance requirements (GDPR, HIPAA, etc.)? Best Regards, Srashtasoft Team
₹25.000 INR em 7 dias
7,0
7,0

With the world becoming increasingly digital, the need for secure apps is more crucial than ever. As the founder and CEO of CnELIndia, a premier web and app development enterprise with over 18 years of experience, I can assure you that we have not only ingrained advanced encryption protocols such as AES-256 into many of our works but strategized how to maximize its implications for security, including those similar to your project. Our experience includes complex projects requiring simultaneous iOS and Android development with intricate features like encrypted document storage, generating legal documents, managing nominees, setting their permissions, and even pioneering death-triggered access release functionalities. This profiles perfectly with your project's needs. In line with your expertise requirements, we have ample experience in iOS and Android development along with a robust understanding of user permission systems and notification mechanisms. Our success stories involving 743+ satisfied clients in similar domains to yours make us confident that we can create the most secure mobile app with ingenious features you require. Partnering with CnELIndia isn't just getting a mobile app; it's getting dynamic security technology within a functional framework that meets your timelines and budgetary constraints without any compromise on quality.
₹35.000 INR em 7 dias
7,0
7,0

Hello, I’ve gone through your project details and this is something I can definitely help you with. With 10+ years of experience in mobile app development, I specialize in creating secure applications that prioritize user privacy and data protection. I have a robust background in implementing advanced encryption standards, including AES-256, ensuring that your encrypted vault for document storage is both secure and user-friendly. I will collaborate closely with you to define the technical approach, focusing on essential features like the will generation module, nominee management, and a death-triggered access release system, to ensure seamless functionality and optimal user experience. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: 1. Do you have specific designs in mind for the app? Let’s discuss over chat!Do you have specific designs in mind for the app? Regards, Arpit Jaiswal
₹27.750 INR em 1 dia
7,5
7,5

Hi There!!! ★★★★ (Secure AES-256 encrypted vault app with nominee & access control system) ★★★★ I understand you need a highly secure mobile app for iOS and Android with encrypted document storage, nominee management, and a death-triggered access release system. The focus is strong security, smooth UX, and reliable notifications. ⚜ AES-256 encrypted vault implementation ⚜ Cross-platform iOS & Android development ⚜ Nominee add/edit/remove with permissions ⚜ Secure will generation module ⚜ Event-based access release system ⚜ Push notifications on updates ⚜ Clean, user-friendly interface I have worked on secure apps involving encryption and user-permission flows, ensuring data safety and performance. Security-first development is something I take seriously. I plan to use Flutter or native with secure key storage, encryption layers, and robust backend APIs for access control and triggers. Let’s connect and discuss your vision, I’m ready to start soon. Warm Regards, Farhin B.
₹25.000 INR em 7 dias
6,6
6,6

Here’s a short, strong proposal: --- I’m a mobile app developer with 10+ years of experience building secure, scalable applications for iOS and Android. I can develop your encrypted vault app using AES-256 standards, ensuring high-level data protection and secure document storage. Approach: Flutter-based app with strong encryption layer Secure vault for documents with local + encrypted storage Nominee management with role-based permissions Notification system for updates Death-triggered access logic with secure validation flow The app will be built with clean architecture, strong security practices, and a user-friendly interface. You’ll receive full source code, documentation, and deployment support. Ready to start immediately. Thank you.
₹25.000 INR em 7 dias
6,2
6,2

With over a decade of experience under my belt, I am highly qualified to handle your Secure Mobile App Development project from start to finish. My work on apps such as IVI Cryptos, Gifting Tracker, and ExploreDen speaks not only to my technical expertise in Android and iOS Development, but also showcases my ability to create apps with the highest levels of encryption and security. What sets me apart is my grasp of clean architecture, and my knack for incorporating AI to enhance app functionality and automate processes. In a project such as yours, this would mean creating an advanced notification system for nominee management, as well as an efficient death-triggered access release system – adding an extra layer of security that few developers can offer. By hiring me, you are not just hiring a developer; you are getting a full-service provider who can create sleek designs in Figma before bringing them to life with pixel-perfect precision, using Flutter or React Native. My commitment is delivering functional, scalable, and secure solutions on time – your encrypted vault app is within reach! Let's get started today!
₹25.000 INR em 7 dias
6,2
6,2

Hello! As per your project post, you’re looking to build a Secure Encrypted Vault Mobile Application for iOS and Android that allows users to store documents safely, manage nominees, generate wills, and automatically release access under defined conditions such as a death triggered event. The goal is to create a highly secure and reliable mobile platform with AES 256 encryption, controlled nominee access, and a structured digital legacy management system. My focus will be on delivering a secure and scalable mobile vault application, featuring: encrypted document vault with AES 256 security, secure user authentication and protected storage, will generation and document management module, nominee management with permissions and access control, automated notifications for nominee updates, death triggered access release workflow with verification mechanism, and cross platform mobile development for iOS and Android. I specialize in building secure mobile applications, encrypted storage systems, and scalable backend architectures with focus on data protection, compliance, and performance. My focus will be on creating a robust and secure vault system that protects sensitive user data while ensuring controlled and reliable nominee access. Let’s connect to review your security requirements, compliance needs, and access release workflow so we can finalize the architecture and development plan. Best regards, Nikita Gupta.
₹65.000 INR em 22 dias
5,3
5,3

***** Secure Encrypted Vault Mobile App Development (iOS & Android) ***** Hello, I've checked your JOB POST and you are looking someone who can build a highly secure encrypted vault app with AES-256 to protect sensitive user documents across iOS and Android. I understand you need a robust system with advanced security, nominee management, and automated access release mechanisms. Features • AES-256 based encrypted vault for secure document storage • Cross-platform mobile app (iOS & Android) with high performance • Will generation module with secure data handling • Nominee management system (Add/Edit/Delete nominees) • Role-based nominee permissions and access control • Real-time notifications for nominee updates and changes • Death-triggered access release system with secure validation logic • End-to-end encryption and secure authentication (biometric/PIN) • Scalable backend with secure APIs and cloud storage integration • Activity logs and audit trails for enhanced transparency Let's Connect... Thanks
₹16.800 INR em 7 dias
4,9
4,9

Hi, Building a secure digital vault requires strong encryption and controlled access — exactly what I specialize in. I understand you need an AES-256 encrypted vault, will generation, nominee management with permissions, and a death-triggered access system for iOS and Android. I’ll implement: • AES-256 encryption • Secure key storage (iOS Keychain / Android Keystore) • Biometric authentication • Permission-based nominee access • Secure notification system I’ve developed secure, privacy-focused mobile apps and focus on clean, scalable, and production-ready solutions. I can start immediately and deliver a secure MVP. Regards, Abhishek
₹25.000 INR em 7 dias
5,5
5,5

You’re building a highly sensitive vault app with AES-256 encryption, nominee controls, and a death-triggered access system—so security, data integrity, and architecture must be airtight from day one. I’ve worked on secure mobile applications where encryption, access control, and protected storage were critical, and I can implement a robust vault (AES-256 + secure key management), along with nominee permissions, event-based notifications, and controlled access release logic. I’d recommend Flutter or React Native with native security layers (Keystore/Keychain) to ensure cross-platform consistency without compromising security. I’ll focus on clean, auditable code and a secure user flow end-to-end. Looking forward for your positive response in the chatbox. Best Regards, Arbaz N
₹35.000 INR em 7 dias
5,0
5,0

Having been in the industry for close to a decade, my team and I at Neha's Development Solutions are no strangers to the world of website and mobile app development. We've tackled numerous projects that have sharpened our skills in Android, iOS, Java, PHP, and .NET, and I believe this vast experience will be instrumental in delivering the secure mobile app you need. Our understanding of complex user permission systems compliments our familiarity with advanced encryption protocols like AES-256 making us a reliable choice for your project. While our diverse skill set speaks for itself, we also offer numerous auxiliary benefits that aim to give you incredible value for your investment. For instance, we commit to provide free support for three months post-project completion. You'll also benefit from our cost-effective project pricing strategy and be impressed by our commitment to cross-browser compatibility. Moreover, we offer well-managed hosting and domain services at an affordable cost. The security of your users' data is of utmost importance. You need a developer who can create an impervious vault storage system and integrate a death-triggered access release system while allowing seamless nominee management capabilities. With proven experience in secure mobile app development and a keen eye towards detail, we assure you that choosing us would not only get the work done but the peace of mind that comes with it. Let's turn your idea into reality! I eagerly
₹25.000 INR em 7 dias
5,3
5,3

Hi there, I will build your encrypted vault app for iOS and Android with AES-256 document storage, will generation, nominee management with permission controls, and a death-triggered access release system. For the death-trigger mechanism, I will implement a configurable inactivity timer combined with nominee verification steps — this prevents false triggers while ensuring nominees gain access reliably when needed. Questions: 1) Should vault data be stored locally on-device, on a cloud server, or both with sync? 2) How should the death trigger be verified — inactivity period, trusted contact confirmation, or a third-party service? Looking forward to discussing further. Best regards, Faizan
₹20.000 INR em 7 dias
4,1
4,1

Hello, I checked your requirements and can build a secure, encrypted vault mobile app for both iOS and Android with AES-256 encryption, ensuring the highest level of security for user documents. With 8 years of experience developing mobile applications, including secure data storage and sensitive document management apps, I specialize in building robust, user-friendly, and fully encrypted solutions. The app will include an encrypted vault, will generation module, and nominee management features (add/edit/remove nominees, set permissions, and notifications upon changes). I will also implement a death-triggered access release system with secure, reliable logic. Development will cover secure permission systems, seamless notifications, and a clean UI optimized for both platforms. You will receive a fully functional app, documented source code, and examples of similar secure applications I’ve built in the past, ready for production deployment LET'S CONNECT TO DISCUS MORE IN DETAIL. SUSHMA
₹13.000 INR em 7 dias
5,0
5,0

Hello, Security-first mobile development is a domain I take seriously where encryption is implemented from day 1 of project inception. My recommended stack: Flutter for cross-platform iOS and Android, with AES-256 encryption handled via platform-native cryptography libraries — not pure-Dart implementations. Keys derived through PBKDF2 with per-user salts, stored in iOS Keychain and Android Keystore respectively. Document vault built on encrypted local storage with optional cloud backup — user's choice. Files encrypted before upload, decrypted only on-device after biometric or PIN authentication. Zero-knowledge architecture: even if your backend is compromised, stored documents remain unreadable. Will generation module structured as guided form flows with PDF output, encrypted and stored in the vault alongside other documents. Nominee management covers add/edit/remove, granular permission levels per nominee, and push notifications triggered on any permission change. Nominees receive access only through a verified release flow — not a simple timer. Death-triggered access uses a multi-factor verification process: inactivity threshold combined with nominated executor confirmation, with a mandatory challenge period before release. No single point of failure. Firebase handles notifications and backend auth. All sensitive operations logged with tamper-evident audit trails. Can we schedule a call to walk through your release verification requirements in detail? Regards, Raj
₹25.000 INR em 7 dias
4,0
4,0

As an established Full-Stack and Mobile App Developer with 7+ years of professional experience, I am no stranger to the demands of secure coding and systems. I have previously developed and delivered numerous projects across industries that require utmost confidentiality and paramount security. One key example is when I developed a secure encrypted messaging platform for a digital banking solution, incorporating advanced encryption protocols and stringent user permission systems to safeguard sensitive information. Furthermore, I possess expertise in iOS and Android development, routinely using advanced encryption standards like AES-256 - the very requirement you're seeking. My vast knowledge in backend architecture ensures secure storage management such as your encrypted vault, which will flawlessly integrate with frontend functionalities. What sets me apart is my ability to see beyond code and translate complex ideas into streamlined solutions. From integrated Will Generation modules to Death-triggered Access Release Systems, I have both the vision and experience to bring your app to life with impeccable functionality. At the same time, I maintain crystal-clear communication throughout the project, offering daily updates, realistic timelines, and ensuring zero ghosting. With my commitment to clean, testable code, your future developers will find it much easier to work within this project's scope!
₹25.000 INR em 7 dias
3,9
3,9

Building secure and robust mobile apps is our specialty at SoftwareLinkers. Having worked on a wide range of projects including education, finance, logistics, and corporate platforms, we understand the paramount importance of data security. My experience in PHP & MySQL backend development for scalability and React.js/Flutter app development will come in handy for your project. Rest easy, knowing your app will be built with advanced encryption standards (AES-256) to ensure maximum security for all user documents. Moreover, with a solid background in web application development, I excel in building RESTful APIs and integrating them seamlessly with mobile apps. This expertise pairs perfectly with your key features such as nominee management and death-triggered access release system. On top of that, my understanding of user permission systems and notification mechanisms furthers enhances the compliance and ease-of-use of the app. To summarize, our approach at SoftwareLinkers is not just about writing code but understanding your business goals deeply. If you choose us for this important project, you are guaranteed secure, scalable, and future-ready solution that aligns perfectly with your needs - backed by a professional team delivering results
₹35.000 INR em 21 dias
3,8
3,8

Hi, I specialize in building secure mobile applications with strong encryption and sensitive data handling. Your vault app requires careful architecture, especially around AES-256 encryption, secure key management, and controlled access flows. I can develop this using Flutter or React Native with a robust backend to handle encrypted storage, nominee logic, and real-time notifications. How I’d approach it: • End-to-end encrypted vault (AES-256 with secure key handling) • Secure authentication (PIN/biometric + optional 2FA) • Nominee management with permission controls and audit logs • Trigger-based access system (with verification layer for security) • Real-time notifications for any updates or changes • Clean, user-friendly UI for sensitive workflows I’ve worked on apps involving secure data storage, role-based access, and payment/auth systems, which follow similar security standards and architecture. Do you want cloud-based encrypted storage or fully device-based vault? How should the “death-trigger” be verified (manual admin, inactivity, or legal proof)? Let’s connect and plan a secure, scalable build for your app.
₹22.000 INR em 7 dias
3,6
3,6

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