ANDROID CALLING APP

@Minhaj333

Hi, I can build or update your Android calling app with features like OTP login, voice/video calling, database integration, and payment gateway. I’ll ensure smooth performance and proper setup on your laptop as required. Can you share more details about the calling features you need (1-to-1, group, recording, etc.)?

@GobindSawarn

Hi, I understand your requirement clearly—you already have the Android UI ready, and you just need core functionalities implemented smoothly on your laptop. I can help you complete this efficiently without overcomplicating things. Here’s how I’ll implement your app: • OTP Login (Mobile आधारित) – Firebase OTP authentication (fast + secure) – Auto verification + fallback manual OTP • Voice & Video Calling – Integration using Agora / WebRTC (low latency, reliable) – Clean UI connection with your existing design • Database Integration – Firebase / MySQL API (as per your preference) – Proper data flow (user, calls, transactions) • Payment Gateway – Razorpay / Stripe integration – Secure payment flow + success/failure handling Important Points: • Will work directly on your laptop (as required) • Clean, maintainable code (no bugs, no hacks) • All features fully tested before delivery Deliverables: • Working Android app with all functionalities • Source code updated • Basic explanation so you can manage later ⏱️ Timeline: 3–5 days I’ve worked on similar apps involving OTP login, calling features, and payment integration, so I can complete this quickly and correctly. Ready to start immediately ?

@utsav007pandya

Hello, The main gap in apps like this is not the UI—it’s wiring the core systems together in a stable, production-ready way across auth, realtime communication, database sync, and payments. I can implement the backend + Android integration so your existing design becomes a fully working app. I’ll handle: • Mobile OTP login (secure auth flow with session handling) • Voice & video calling integration (WebRTC or suitable SDK) • Database connectivity for Android (clean API layer + sync structure) • Payment gateway integration with proper success/failure handling Everything will be structured cleanly so each module works independently but connects smoothly, and runs directly from your laptop setup for testing. Best Regards, Utsav

@sagarr1999

Hello sir, I have 6+ years of experience in Android development and have successfully implemented mobile-based OTP login systems, real-time voice and video calling functionality, database integration for Android apps, and payment gateway integration in production-level applications. I specialize in working on existing designed apps and implementing core functionalities using technologies like Java/Kotlin, Firebase, WebRTC, Retrofit, Room database, and secure authentication systems while ensuring smooth performance, scalability, and clean integration. I can start immediately and complete the required implementations on your existing Android app, and I can work on your laptop as mentioned. Thanks, Sagar

@rishus769

I am a professional software developer with experience in building efficient, secure, and user-friendly applications. Whether you're a startup, small business, or enterprise, I can help turn your ideas into powerful software solutions. What I Offer: Custom software development Web application development API development & integration Bug fixing and code optimization Database design and management Automation tools and scripts Technologies I Work With: Frontend: HTML, CSS, JavaScript, React Backend: Node.js, Python, Java, PHP Databases: MySQL, MongoDB, PostgreSQL Other: REST APIs, Git, Cloud services Why Choose Me: Clean, maintainable, and scalable code On-time delivery Clear communication throughout the project Post-delivery support Before placing an order: Please contact me to discuss your project requirements so I can provide the best solution. Let’s build something great together.

@ttobio69

Hi there, I read your requirements carefully, and I can help implement the core functionality of your existing Android app on your laptop setup. The best approach is to keep the current app design as the frontend base, then connect the essential modules one by one: mobile OTP login, voice/video calling, database integration, and payment gateway. This keeps development clean, faster, and focused on making the app fully functional instead of redesigning what is already done. I have solid experience with Android development, backend-connected app workflows, authentication systems, database integration, and payment flows. My focus will be on making the app stable, practical, and easy to test locally on your laptop environment. What I can help with: • Mobile OTP login implementation • Voice and video calling integration • Database connectivity and app data flow • Payment gateway setup • Functional integration into your existing Android design • Local setup so it works on your laptop environment I understand you want the work done on your laptop only, and I can follow that requirement. Cost: ₹10,000 || Timeline: 3 days Best regards Oluwatobi Okedairo

@rakeshk322

Hi, I can work directly on your laptop via TeamViewer or AnyDesk and implement the required core functionalities into your existing Android app without disturbing the current design. I have hands-on experience integrating OTP-based authentication, real-time voice/video calling using WebRTC or Agora, secure database connectivity with Firebase or REST APIs, and reliable payment gateways like Stripe or local providers. I will ensure smooth performance, security, and clean code structure. Questions: Which OTP service do you prefer? Do you already have a backend/API for database and calling? Which payment gateway should be integrated? Are there any preferred SDKs or constraints? What is your expected timeline?

@nexoraIT

Being a member of Nexora, I am proud to say that we have the skills and expertise to meet your needs for the implementation of core functionalities within your Android calling app. With our main focus being in Android development using Kotlin, we are well-equipped to deliver on the mobile-based OTP login, voice and video calling, database connection, and payment gateway components vital for your app. As the project requires connecting with databases from an Android system, our strong SQL skills will come into play seamlessly. Our experience in developing binaries will equate to greater efficiency and time management during development. The key attribute we bring is a deep understanding of the intricate workings of this realm, allowing us to provide robust solutions while ensuring smooth performance even at peak loads. Moreover, we understand the importance of being platform-specific which is why at Nexora, I assure you that all my work on your project will be done exclusively on your laptop,"ensuring complete confidentiality of your information. By opting for our team, not only do you gain access to highly-skilled professionals but also peace of mind that your project is handled with the dedication it deserves.