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This is a college-level project: an end-to-end encrypted chat application built in Android Studio with a MongoDB back-end. All user accounts should authenticate strictly through email-and-password flow; no phone or social logins are needed. Core experience • One-to-one and group chats must be fully encrypted on the client before any data leaves the device, then stored in MongoDB in ciphertext. • Group chat creation, member invites, and message history sync are required. • Chats should support file sharing (images, documents, etc.), voice messages, and simple user-profile customisation such as avatar and status text. UI/UX Keep the interface clean and fast: a sign-in/sign-up screen, chat list, message view with attachments, and a lightweight profile edit screen. Material Design components are fine; originality is welcome but not mandatory. Deliverables 1. Complete Android Studio project (Java or Kotlin) with all source code. 2. MongoDB schema and sample data plus connection instructions (Atlas or local). 3. README explaining build steps, encryption approach, and how to run a quick demo on a fresh system. 4. Short video or screenshots demonstrating email sign-up, group creation, sending a file, and a voice note. 5. Final APK suitable for submission as a low-budget college assignment. Acceptance criteria • Message contents, file bytes, and voice data remain unreadable from the database or network logs. • Email registration/login works reliably, including password reset. • Group chat handles at least five members without crashes. • File and voice uploads under 10 MB complete in <10 s on a standard Wi-Fi connection. • All requested features compile and run cleanly in the latest stable Android Studio. I’m aiming to keep costs down, so clean, well-commented code and minimal third-party services are preferred over paid APIs. If a lightweight open-source library simplifies encryption or media handling, feel free to suggest it before integrating. Looking forward to seeing how you can wrap robust security and handy extras into a streamlined student-friendly budget.
Mã dự án: 40353207
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9 freelancer chào giá trung bình ₹31.079 INR cho công việc này

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
₹1.050 INR trong 7 ngày
7,0
7,0

Hi 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)
₹30.000 INR trong 7 ngày
6,6
6,6

Hi, I can build your end-to-end encrypted Android chat app with MongoDB, keeping it secure, lightweight, and suitable for a college project. I have experience with real-time chat systems, encryption, and Android development using Kotlin/Java. Approach: * Client-side encryption (AES + secure key exchange like RSA/ECDH) before sending data * Node.js + MongoDB backend storing only encrypted messages/files * Features: 1–1 & group chat, file sharing, voice notes, profile customization * Clean Material UI with smooth performance * Use lightweight open-source libraries for encryption and media handling I’ll deliver full source code, schema, README, APK, and demo proof as required. Timeline: 2–3 weeks Ready to build a secure, well-documented project within your budget. Best regards,
₹30.000 INR trong 7 ngày
5,7
5,7

Hello! I am excited about the opportunity to work on your college-level project for an end-to-end encrypted chat application using Android Studio with a MongoDB back-end. I am confident in my ability to deliver a high-quality solution that meets all your requirements, including fully encrypted one-to-one and group chats, file sharing capabilities, and a clean and fast UI/UX design. I look forward to discussing further details and collaborating on this project with you. Thank you for considering my proposal. Regards, Yogesh Kumar
₹610 INR trong 6 ngày
5,4
5,4

I have already have chat app. I will change some thing in that and make it for you. By this you will get low budget for your college project. I have 6+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.
₹11.000 INR trong 5 ngày
4,5
4,5

With my diverse experience in developing practical web and app solutions, I am confident that I can bring your vision of an end-to-end encrypted chat application built in Android Studio to life. From ERPs/CRMs to custom dashboards, I have consistently delivered high-quality software that aligns with clients' needs and enhances their businesses. The specific skills relevant to your project include extensive Android App development expertise, a deep understanding of Java, and a proven track record in Mobile App Development. Additionally, the importance of security and data privacy is at the heart of my work - a core requirement for your challenge. Over the years, I have developed various applications that prioritize robustness and security to ensure complete confidentiality. I want to optimize your budget while ensuring top-notch quality. My focus on clean, maintainable coding means minimal reliance on third-party services- aligning with your preference for a lightweight, low-cost approach. Uncompromised security in seamless features like file sharing and voice messaging would drive your project forward; and my technical adeptness makes me the right candidate for this task. So let's discuss further about shaping the future of your WhatsApp-like android application!
₹600 INR trong 7 ngày
3,3
3,3

Hi there, We can help build the Android chat app with a clean, student-friendly implementation focused on client-side encryption, email authentication, group chats, and media support. Our approach will keep the codebase maintainable, use minimal third-party dependencies, and include clear setup notes for running the project in Android Studio. We should note that the brief combines encryption, media handling, and MongoDB integration, so we recommend confirming the exact encryption library, backend hosting choice, and password reset flow before work begins. Once those points are clear, we can structure the app, implement the core chat experience, and prepare the APK and handover materials for submission. Best Regards, 8veer
₹1.500 INR trong 20 ngày
0,0
0,0

Indore, India
Thành viên từ thg 4 7, 2026
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₹12500-37500 INR
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₹1500-12500 INR
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$30-250 USD
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₹750-1250 INR/ giờ