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I have a fully-working Android application that currently runs only in offline mode. I now need it moved online so users can access live data through a dedicated server. No new features or UI changes are required—the goal is a straight deployment that preserves all existing functionality. You will handle everything from configuring the server environment, setting up any required APIs or databases, to packaging and releasing an online-ready APK. Once complete, the app should connect seamlessly to the server, sync data in real time, and perform exactly as it does offline. Please outline the approach you would take, the tools you’ll use (Android Studio, backend framework, hosting stack, etc.), and an estimated turnaround time. Successful delivery is the live server running and the updated APK passing a quick functionality test on my end.
Project ID: 40589099
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Active 3 days ago
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39 freelancers are bidding on average ₹8,495 INR for this job

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.
₹10,000 INR in 7 days
8.5
8.5

Hi, I can help with your "Deploy Offline Android App Online" project. I develop clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving java, mobile app development, android, mysql, backend development, android app development, android studio, api development, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. You'll get clean commits and clear documentation. Could we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "They delivered the project well ahead of the committed delivery date. It was an experienced team, and I would be happy to hire them again." Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹10,000 INR in 3 days
7.9
7.9

As a seasoned Full Stack Developer with over 8 years of experience, I have extensive knowledge in all aspects of Android app deployment, working with backend APIs and databases, making me the perfect candidate for your project. My proficiency in Java and Android App Development combined with my skillset in API Development and Backend Development (using MySQL) will help me to smoothly transition your offline app into the online realm. Moreover, my dedication to client satisfaction means I also provide long-term support post-deployment. Given that your project does not require any additional features or UI changes, I estimate a swift turnaround time to get your app running online efficiently – providing a hassle-free experience to you and your users. Let's collaborate to embody your vision and deliver on its promise of enhanced user engagement and convenience.
₹7,000 INR in 7 days
5.4
5.4

Hello, I can migrate your offline Android app to an online system by setting up the backend, database, APIs, and real-time data sync while preserving all existing functionality. I’ll deliver a fully functional online-ready APK with a scalable and secure solution. I can start immediately.
₹5,500 INR in 3 days
4.9
4.9

Hey , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in API Development, Android Studio, Android App Development, Backend Development, Android, Java, Mobile App Development and MySQL. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thanks and Regards
₹7,770 INR in 2 days
4.3
4.3

Your Android app works perfectly offline — the migration to online is purely an infrastructure job, not a rebuild, and the scope is clear: backend server, REST API layer, and updated APK that connects to it. I've done exactly this type of migration: took an Android app using local SQLite storage, built a FastAPI backend on a VPS with MySQL, replaced the local data access layer with Retrofit API calls, and delivered a working online APK with real-time sync. No UI changes, no feature additions — just the connectivity layer. For your app: backend setup on a cloud VPS (Railway, Render, or your preferred host), REST API endpoints mirroring your existing data structure, Android-side Retrofit integration replacing local data calls, and a tested APK that syncs live with the server. Before I scope the backend: what language/framework is the app currently built in (Java or Kotlin), and what does the offline data look like — SQLite tables, flat files, or something else?
₹10,000 INR in 2 days
4.5
4.5

With my rich experience in full-stack development, including extensive work in API and mobile app development using tools such as Flutter and Kotlin for Android, I am confident that I can provide the precise solution you need. In approaching this project, firstly I would prepare a comprehensive plan to leverage your existing offline application efficiently. Secondly, utilizing modern backend frameworks like Node.js - which ensures high performance and allows real-time data sync - I will set up the required APIs and databases on a secure hosting stack. The next step would be packaging and releasing an online-ready APK using Android Studio, which I'm intimately familiar with. Throughout the process, my priority will be on maintaining both the features and UI of your already-functioning application, ensuring it runs seamlessly on the dedicated server. I can work swiftly without compromising the quality of my work, aiming to have the live server running within _ weeks and providing you with an updated APK that will pass any functionality test you throw at it.
₹1,500 INR in 7 days
4.4
4.4

Your project requires more than simply hosting the APK — the key part is converting the current offline data flow into a stable online architecture while preserving the app’s existing behavior and user experience. My approach would be: - Analyze the current Android app structure and identify how local data is stored and consumed. - Design and deploy a lightweight backend API to expose the required live data endpoints. - Configure the database layer and server environment. - Integrate the Android app with the new online services while keeping the existing UI and functionality unchanged. - Implement synchronization and error handling for stable real-time communication. - Generate and test the updated APK against the deployed server. For the stack, I would typically use Android Studio for the mobile side, Spring Boot or Node.js for the backend API depending on the app structure, PostgreSQL or MongoDB for persistence, and AWS or another cloud VPS for deployment. The final solution will include a running server environment, deployment configuration, and an online-ready APK. Before starting, I would first review the existing project to confirm how the offline layer currently works and whether there are any hidden dependencies tied to local storage or device-only logic. Estimated delivery time for a clean deployment and integration is around 5 days after access to the source code and deployment credentials.
₹12,500 INR in 5 days
3.6
3.6

Hello, I can help migrate your existing Android application from offline-only operation to a server-connected online solution while preserving its current functionality and user experience. My approach would begin with reviewing the existing app architecture and local data storage to determine the most efficient way to introduce server synchronization without affecting existing workflows. I can set up the required backend infrastructure, database, APIs, authentication (if needed), and hosting environment, then update the Android application to communicate securely with the server and synchronize data in real time. The goal is to keep the transition seamless so the app behaves exactly as users expect while gaining online capabilities. I work with Android Studio, Java/Kotlin, Node.js, Firebase, SQL databases, REST APIs, Docker, and Linux server environments. After implementation, I will provide the updated source code, server deployment configuration, documentation, and a release-ready APK for testing. Once I review the application structure and current storage method, I can provide an accurate timeline, but for a straightforward migration, the turnaround is typically fast and focused on stability and data integrity.
₹9,000 INR in 7 days
2.0
2.0

Hello, I’d be happy to migrate your existing offline Android application to an online architecture while preserving its current functionality and user experience. My approach is to keep the transition seamless, ensuring users experience the same workflow while benefiting from secure, real-time data synchronization. I’ll begin by analyzing the existing app structure and local data storage, then design a lightweight backend using Node.js/Express or Django (depending on your requirements) with a secure database such as MySQL, PostgreSQL, or MongoDB. I’ll develop the necessary REST APIs, configure authentication if required, deploy the backend on a reliable cloud platform (AWS, DigitalOcean, Render, or similar), and integrate the Android app using Android Studio. The application will be updated to communicate with the live server, synchronize data efficiently, and include proper error handling for network interruptions. You’ll receive the updated Android Studio project, a production-ready APK, deployed backend, API documentation, environment configuration, and deployment instructions. Before delivery, I’ll thoroughly test all existing features to ensure the online version behaves exactly like the offline application while maintaining performance, stability, and data integrity. I’m ready to begin immediately and can provide a realistic timeline after reviewing the current application and project scope. Best regards, Lokendra Dewangan.
₹7,000 INR in 7 days
0.0
0.0

As an experienced mobile app developer with an impressive portfolio ranging across industries like healthcare, e-commerce and fintech, I can guarantee a high-quality, scalable voice calling app that meets your precise specifications. I'm particularly skilled with WebRTC technology, and whether you choose that or another proven voice stack, rest assured that it will be implemented effectively. Throughout my 8+ years in the field, I have developed multiple apps from scratch and this has strengthened my ability to handle all aspects of the project - from API integration and database management to UI/UX design implementation. My dedication to delivering clean code ensures minimal crashes or memory leaks during operation ensuring a smooth user experience. Moreover, I understand the need for efficient communication which is why you can expect timely updates on project progress from me. I'm ready to bring my transformative ideas into creating a powerful Android voice calling app for you. With my skills, experience and a proven track record of completing projects in a timely manner, let's connect and turn your vision into reality!
₹7,000 INR in 3 days
0.0
0.0

Hi! Moving an offline Android app to online infrastructure is exactly the kind of clean, focused backend work I enjoy — no feature creep, just a solid migration done right. My 14-day plan: Days 1–2: Review your existing codebase thoroughly — understand local database structure, data models, and offline logic before touching anything Days 3–5: Set up server environment — Linux VPS (DigitalOcean/AWS/Railway), MySQL database mirroring your existing schema, SSL configured Days 6–9: Build clean REST API endpoints using Django/Node.js that replicate your offline logic exactly — no functionality changes, just online equivalents Days 10–12: Update Android app to replace local data calls with API calls, implement real-time sync with proper error handling and offline fallback Days 13–14: Full end-to-end testing, signed APK build, and handover with server credentials and documentation A few quick questions to get started immediately: What local database are you using — SQLite or Room? Do you have a hosting preference or should I recommend one? Is the app in Java or Kotlin? Ready to start as soon as you share the codebase.
₹7,000 INR in 15 days
0.0
0.0

I understand you need to migrate your offline Android app to a live server setup so users can access real-time data without losing any existing functionality. The key here is connecting your app to a backend while keeping the offline logic intact. Here's my approach: First, I'll set up a Node.js/Express backend with MySQL to mirror your app's data structure and create REST APIs for all data operations. Second, I'll modify your Android code to switch between offline SQLite and online server calls based on connectivity-no UI changes needed. Third, I'll configure the server, test sync logic end-to-end, and build the final APK ready for release. I've worked on backend integration and API development for a Telegram bot system (handles live order processing 24/7 in production) and a crypto payment system that syncs data between client and server in real time. Both taught me how to handle connectivity edge cases without breaking the user experience. Deliverables: Working server (Node.js + MySQL on hosting), updated APK with live data sync, and a quick handoff doc on how the connection works. Price: 8125 грн, timeline 5 days. Everything goes through Freelancehunt Escrow-your money stays frozen until you confirm the app works and connects to the live server. I'll push a working demo by day 2 so you can test it yourself before final payment. One thing to clarify: does your offline app use SQLite, SharedPreferences, or Realm for local storage? That'll shape the sync strategy.
₹8,125 INR in 5 days
0.0
0.0

Hi! I understand you need a reliable developer to migrate your fully functional offline Android application to an online architecture while preserving all existing functionality and user experience. Many projects face issues when server integration is rushed, APIs are poorly structured, or deployment is completed without proper testing and post-launch support. I can work confidently with Java, Android Studio, MySQL, PHP, Backend Development, API Development, and Android App Development requirements. I will configure the server environment, develop secure APIs, connect your Android application to the backend, implement real-time data synchronization, thoroughly test every existing feature to ensure nothing breaks during migration, and deliver an updated APK ready for production deployment. I will also provide daily progress reports, detailed documentation of all created, modified, and deleted files/functions, and post-deployment support to ensure the online version performs reliably. Could you please share the current Android source code, database structure (if any), and let me know whether you already have a hosting/server environment available? Open chat now and let's discuss the project requirements in detail.
₹7,000 INR in 7 days
0.0
0.0

Hi, I can move the existing offline app online without changing its UI, but the first step must be a source-code and local-data-model audit. My plan: map entities and conflict rules; build a versioned REST backend in Node.js/TypeScript or FastAPI with PostgreSQL/MySQL; add authentication, idempotent sync, retry/offline queue, timestamps and conflict handling; deploy with Docker, HTTPS, backups and logs; then update the Android data layer and provide a signed test APK plus deployment notes. Bid: ₹12,500, delivery: 7 days for a small app with the agreed data entities. Milestone 1 will prove one complete entity syncing device → server → second device; if the app has many modules or source/keystore access is missing, I will flag and re-scope before implementation rather than hide it. Questions: is the app Java or Kotlin, does it use SQLite/Room, how many entities and users are expected, is near-real-time push required, and will you provide source code, signing keystore and VPS/cloud access?
₹12,500 INR in 7 days
0.0
0.0

am professional web developer ... with master degree .. i have sympathy with small budget projects am Professional Android and iPhone&iPad App developer is ready for your project. I can help migrate your Android app from offline-only to a fully online solution while preserving its existing functionality and user experience. My approach: * Analyze the current offline architecture (Room/SQLite/local storage). * Design and implement a secure backend API (Laravel, Spring Boot, or Node.js based on your preference). * Set up the database (MySQL/PostgreSQL) and deploy it on a VPS or cloud server. * Connect the Android app using Retrofit/Ktor, replacing local data sources with online APIs. * Implement real-time synchronization, error handling, and offline fallback where appropriate. * Configure the production server (Nginx, SSL, domain, backups). * Build, test, and deliver a production-ready APK. Tools & Stack * Android Studio (Kotlin/Java) * Retrofit/Ktor + Coroutines * Laravel / Spring Boot / Node.js * MySQL or PostgreSQL * Nginx + Ubuntu VPS (DigitalOcean, AWS, etc.) * Git/GitHub for version control
₹1,500 INR in 7 days
0.0
0.0

I can take your existing offline Android app and move it online without changing any features or UI, making sure it connects to a secure server and syncs data in real time exactly as it works now. I’ve deployed Android apps to production setups where we introduced APIs, databases, and hosting while preserving behavior. I’m comfortable with Android Studio, REST APIs, and common hosting stacks like VPS or managed cloud. My approach: review the current data layer, design a minimal REST API, set up a backend (Node.js or PHP/Laravel) with a database on a cloud server, integrate the app with the new endpoints, then build and deliver an updated APK within about 5–7 days. I would love to chat more about your project! Regards
₹1,500 INR in 2 days
0.0
0.0

Hi, I can move your existing Android app from offline-only mode to a server-based setup without changing the current UI or functionality. My approach would be: 1. Review the Android source code and understand how the app currently stores and reads offline data. 2. Create a backend API and MySQL database based on the existing data structure. 3. Deploy the backend and database to a VPS or cloud server. 4. Update the Android app to send, receive, and synchronize data through the API. 5. Build a release APK and test the main user flows before delivery. I can use Android Studio for the application, a REST API backend, MySQL for the database, and Docker/Nginx for server deployment if required. Before starting, I would need access to the Android source code and a short explanation of which data must be shared or synchronized between users. For a standard-sized application, I expect the work to take around 3–5 days. I will provide the working server, updated source code, API details, and the final APK.
₹7,000 INR in 5 days
0.0
0.0

I can migrate your existing offline Android app to a secure online architecture while keeping the current UI and functionality unchanged. I'll first analyze the existing data layer, replace local-only storage with a scalable backend API, configure the required database, implement real-time synchronization where appropriate, and update the app to communicate with the server. I'll handle server deployment, API integration, testing, and deliver a production-ready APK along with the live backend. Typical turnaround is 5–10 days depending on the app's complexity. Contact: +91 88264-50850.
₹4,000 INR in 4 days
0.0
0.0

Hi, I have reviewed your project and understand that you need to convert your existing offline Android application into an online application while keeping all current functionality intact. I have experience building mobile applications, integrating REST APIs, working with databases, and deploying production-ready apps. I can help you configure the backend, connect the app to live data, and ensure everything works reliably. Before starting, I have a few questions: • Is the application developed in Java or Kotlin? • Do you already have a backend, or should I develop one? • Can you share the source code so I can review the architecture? Looking forward to discussing your project. Regards, Mohammad Noorul Hoda
₹4,500 INR in 7 days
0.0
0.0

Delhi, India
Member since Dec 3, 2013
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