Encrypted Call App with Coins

@mariakhan73700

As a seasoned full-stack developer with over a decade of hands-on experience in Android and iOS mobile app development, I have successfully completed numerous projects that share similar functionalities with yours. Combining my proficiency in Kotlin and Swift programming skills with my keen eye for UI/UX design, I am confident that I can provide the native feel you desire across both platforms while ensuring advanced security measures. My expertise extends beyond just coding as I also place a strong emphasis on clean and well-commented code, which speaks to the maintainability of the app. In terms of back-end development, I am adept at languages and frameworks like JavaScript, TypeScript, Node.js, and Express.js. This not only fuels my skills in crafting fast and scalable server-side applications but also allows me to create user-friendly web interfaces for tools like your envisioned small admin dashboard. Given my wealth of experience with API integrations for transactions and subscriptions (including Apple's in-app-purchase APIs), I'm well-positioned to deliver the seamless coin management system that your project requires. The real-time balances and detailed usage history will be done exactly as required so that you can modify prices and payout ratios from an admin panel without app redeployment. Encrypted calls, 2FA onboarding, complete coin purchase-spend-balance cycles - you name it!

@mrresearcher99

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best, Bhargav Android Developer | Kotlin & Java Expert

@vipinjain1213

Hi, For an encrypted calling app with coin-based usage, the critical part is maintaining call stability and secure session handling while accurately tracking real-time coin deduction. I can build this as a cross-platform mobile app with a secure backend handling encrypted audio/video sessions, 2FA onboarding, and a flexible coin economy managed from an admin panel. Tech direction: Flutter (iOS & Android) + secure real-time media engine + Node.js backend + PostgreSQL. Key focus: • End-to-end encrypted audio/video sessions • 2FA login (Authenticator / SMS / push) • Coin top-up via in-app purchases • Per-minute coin deduction with live balance tracking • Admin dashboard to manage pricing & payouts without redeploy • Lightweight, consistent native-feeling UI The backend will be structured so pricing rules and monetisation logic can change anytime without app updates. Quick question — should coin deduction stop instantly if connection drops, or allow short grace buffering during reconnect? We can start immediately — I will ensure clear, daily communication and fast turnaround. You’ll always know the exact progress. Lets connect over chat so we could discuss.

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description, you are looking for develop E-commerce app on both Android and iOS. I have sound of seven years plus experience in mobile development. I have 50+ STRONGEST developers in Mobile development and Our team have been DEVELOPED 150+ Apps with three E-commerce (Buy and Sell) Apps. There are basic functionality in apps which are shown below 1. Sign up with social login 2. GPS system for location 3. Search Product according to location 4. Book the order 5. Add to cart 6. Payment Mode- Online and Offline 7. Order history 8. Chatting and Calling Functionality 9. Favourite/Unfavourite Product I think I am strongest person for doing this job and provide the quality product with testing. Thanks

@NEHABHAT92

As an experienced full-stack developer with a focus on both Android and iOS platforms, I believe I can deliver the secure audio and video calling app you are looking for. With a proven track record in both WebRTC and comparable engines, I am confident in my ability to ensure high-definition call quality even on moderate bandwidth. Security is a top priority for me too, and I am familiar with implementing end-to-end encryption and multi-factor authentication (MFA) using Google Authenticator, SMS, or push-based approaches. In terms of your unique requirements for coin monetization, I have a solid grounding in payment system integration through standard in-app purchase APIs. Not only can I accommodate your vision for spending and earning coins within the app, but I can provide the versatility for you to tweak prices and payout ratios from your admin panel without needing to redeploy the app. Perhaps most importantly, my team possesses the expertise to ensure both a native feel consistent with the platform of each build while incorporating shared logic for a swifter delivery. Additionally, we offer further value through providing not just the source code of the apps but also the server components plus a secure admin dashboard for managing users,

@Ak230598

Hello, I CAN DO THIS. I have 6.5+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.

@fullstack0407

I’ve worked on real-time communication systems and understand that crystal-clear performance and airtight security must be engineered from day one not added later. Your concept for a secure, high-definition audio/video calling platform with built-in monetisation is both ambitious and absolutely achievable. For call infrastructure, I recommend WebRTC with a TURN/STUN server configuration to maintain HD quality even under moderate bandwidth conditions. On the backend, I propose Node.js (NestJS) or Go for scalable signaling services, paired with PostgreSQL for transactional integrity (coins, usage logs, audit trails).

@murtuza90

With over 13 years of experience in Full Stack Development, I am well versed in all aspects of building and scaling high-performance mobile applications. Your project aligns perfectly with my skill set. As a proponent of secure, scalable and future-ready solutions, I have ample experience incorporating complex systems like WebRTC and two-factor authentication to ensure optimum security and performance. Moreover, my background in building robust data models makes me the perfect choice for implementing your built-in coin system. I will lay a solid foundation that allows easy customization of prices and payout ratios through an admin panel - no redeployment necessary. Lastly, I understand the importance of creating a seamless user experience and delivering native-like applications on both Android (Kotlin) and iOS (Swift/SwiftUI) platforms. My expertise in using reusable shared logic without sacrificing platform-specific experiences is what you need. I guarantee to provide you with well-commented source code, comprehensive deployment guides, a small admin dashboard, and thorough testing to ensure high-functionality before moving ahead. Let's connect to delve deeper into your vision!

@RajAbhisek

Hi, I'm Raj Abhisek Panda, and I've built quite a few communication apps over the past few years—so when I saw your encrypted calling app with coins concept, it felt like something I could definitely deliver on. I understand you need a solid, production-ready app on both Android and iOS with WebRTC for crystal-clear calls, end-to-end encryption across all traffic, and a 2FA system that doesn't feel clunky. The coin system for monetization is straightforward enough—in-app purchases, per-minute spending, premium unlocks, and a clean admin panel where you can adjust pricing without touching the app code. That's exactly the kind of architecture I usually build. For Android, I'll go with Kotlin and native components. For iOS, Swift and SwiftUI to keep that native feel you're looking for. Both platforms will talk to a backend API (Node.js or similar, depending on what works best) that handles encryption, 2FA verification, coin transactions, and user analytics. I'll make sure the admin dashboard lets you manage everything—users, coin pricing, usage history—without any redeployment hassles. I've done TestFlight and Google Play Internal Testing builds before, so the final deliverable with working encrypted calls, full 2FA flow, and a complete coin cycle is totally doable. Just ping me on chat if you want to move forward—we can sort out the details and timeline from there. Looking forward to building this with you. Cheers, Raj Abhisek Panda

@shibbuquadir

With more than 5 years of experience in Android and mobile app development, my team at Paper Perfect has the necessary skills and expertise to build your encrypted calling app. I understand the pivotality of security in your project; making sure all voice, video, and chat traffic is end-to-end encrypted with two-factor authentication is our bread and butter. We have hands-on experience with WebRTC to ensure high-definition quality on every call, even on moderate bandwidth. Moreover, our proficiency in both Kotlin-based Android and Swift/SwiftUI-based iOS builds will promise a native feel for each platform. Leveraging on this capability, we can use shared logic to speed up delivery without sacrificing quality or consistency. Additionally, our proficiency in managing coins, including real-time balance updates and detailed usage history, aligns perfectly with the built-in coin system of your project. We can also design a flexible data model for easy management of prices and payout ratios from an admin panel. Lastly, delivering polished projects promptly and efficiently is our mission. If chosen for this project, you can expect well-commented source code for both apps and server components. Additionally, we will provide a small admin dashboard for basic analytics alongside thorough deployment guides and fully functional builds on TestFlight and Google Play Internal Testing for your review. Let's make your vision a reality together!

@rajmalviyamalviy

Hello, I’d love to help bring your secure audio and video calling platform to life. I’m a full-stack developer with strong experience in real-time communication apps using WebRTC-based architectures, secure backend systems, and native mobile development (Kotlin for Android and Swift/SwiftUI for iOS). I can deliver a production-ready solution with: • Crystal-clear HD audio/video powered by WebRTC • End-to-end encryption for voice, video, and chat • Secure 2FA onboarding (Google Authenticator, SMS, or push-based—based on best backend fit) • A flexible coin-based monetisation system with in-app purchases, real-time balance tracking, and adjustable pricing via admin panel • Lightweight, modern, fully native UI on both platforms You’ll receive clean, well-documented source code (apps + backend), a web-based admin dashboard, deployment documentation, and live test builds on TestFlight and Google Play Internal Testing demonstrating encrypted calls, 2FA flow, and the complete coin lifecycle. I focus on scalability, clean architecture, and security-first development to ensure your platform is stable and future-ready. I’d be happy to discuss your timeline, preferred backend stack, and milestone structure. Looking forward to connecting. Best regards, Raj M

@Vermapratham1234

With my extensive background in digital marketing and automation, I possess the perfect skillset to not only develop your encrypted call app in a proficient manner but also optimize its growth and monetization potential. I have a proven track record of scaling ad accounts to over $2M in ad spend while maintaining consistent profitability, which is crucial considering the built-in coin system for your app. With me, you're not just getting a skilled developer but a strategic mind that knows how to leverage intelligent automation and funnel optimization to drive increased revenue, just like we intend with the coin pricing! It's worth mentioning that my expertise doesn't stop at development. I have an eye for stunning creative design, crucial for delivering a streamlined and visually engaging UI/UX experience across both Android and iOS. Additionally, as an adept full-stack developer, I am well-skilled in WebRTC technology for ensuring top-tier audio-video calling quality even on bandwidth-stricken connections. Furthermore, my proficiency in Kotlin-based Android development and Swift/SwiftUI-based iOS builds would ensure native-feeling interfaces aligned with platform conventions while potentially delivering early deployment maximizing reusable shared logic. Overall, what sets me apart is that I don't just aim to deliver your project; I aim to deliver results and impactful solutions that transform brands. Allow me to offer you that advantage!

@Mayanks010

Hi there, You’re absolutely in the RIGHT PLACE. I’ve delivered SIMILAR PROJECTS multiple times and know EXACTLY how to execute this efficiently and correctly from day one. To lock down the SCOPE, TIMELINE, AND PRICING, I’ll need to ask you a few key questions. Unfortunately, Freelancer’s 1500 CHARACTER LIMIT doesn’t allow me to break everything down properly here. Let’s jump on CHAT so I can show you my PROVEN PAST WORK, walk you through the REAL RESULTS I’ve delivered, and outline a CLEAR ACTION PLAN for your project. You’ll immediately see why my approach is DIFFERENT and EFFECTIVE. If you’re serious about getting this done RIGHT, I’m ready to move forward. Looking forward to CONNECTING and WINNING TOGETHER. Cheers, Mayank Sahu

@QuickMentor

I'm excited after reviewing your project details! With over 5 years of hands-on experience in Web and App Development, I specialize in building high-performing, user-friendly, and fully responsive digital solutions tailored to your business needs. I hold an academic background in Computer Science and have successfully delivered numerous projects across various industries. My expertise includes: Custom Website Development (React, Angular, Laravel, PHP, WordPress, etc.) Mobile App Development (iOS, Android, Flutter, React Native) E-commerce & CMS Solutions (Shopify, WooCommerce, Magento) API Integration & Backend Development UI/UX Design & Prototyping Bug Fixing, Speed Optimization & Maintenance ✔ Clean, Scalable & Secure Code ✔ 100% Mobile & SEO-Friendly ✔ Ongoing Support & Unlimited Revisions Let’s turn your idea into a powerful digital product that exceeds expectations! Check my profile: https://www.freelancer.com/u/QuickMentor Looking forward to working with you!

@rooka3

I can deliver a secure WebRTC voice/video app with end-to-end encryption, 2FA login, coin top-up and per-minute billing, plus iOS/Android release support. I work in phased milestones (50/50) with a usable build in 7 days and daily progress updates.

@Rajveer15Singh

Hello [Client Name], I can turn your secure audio/video calling concept into a production-ready Android (Kotlin) and iOS (Swift/SwiftUI) app with a strong focus on HD quality, security, and scalable monetisation. ## ? Technical Approach • WebRTC (SFU architecture) for crystal-clear calls on moderate bandwidth • Node.js/Go backend with PostgreSQL • Secure signaling + encrypted token-based authentication ## ? Security • End-to-end encryption for calls and chat • Mandatory 2FA (TOTP via Google Authenticator recommended; SMS/push optional) • Secure session handling & key exchange ## ? Coin System • Google Play Billing + Apple StoreKit integration • Per-minute coin deduction (server-side authoritative logic) • Premium purchases (e.g., stickers) • Real-time balance + transaction history • Admin-controlled pricing & payout ratios (no redeploy required) ## ? Admin Dashboard • User management • Coin pricing controls • Analytics & transaction logs ## ? Deliverables • Full source code (apps + backend) • Admin dashboard • Deployment guide • TestFlight + Google Play Internal Testing build • Working demo showing encrypted calls, 2FA, and full coin cycle ## ⏳ Timeline Estimated 10–12 weeks for MVP (secure calling + 2FA + coin lifecycle). I’m ready to begin with a technical planning session to finalize architecture and milestones. Best regards, Rajveer Singh

@shailender18

As a seasoned Full Stack Developer, I possess the skills and technical expertise required to turn your concept into a successful reality. My proficiency in MEAN and MERN stacks, combined with my focus on writing clean, optimized code, makes me an ideal choice for your encrypted call app. I am well-versed in Angular and React frameworks which will ensure your UI/UX remains lightweight, modern, and consistent across Android and iOS platforms. Moreover, my experience with database design and optimization (especially MongoDB and Mongoose) aligns well with your needs for a secure back-end. Trust me to guarantee end-to-end encryption of all voice, video and chat traffic, while implementing robust two-factor authentication to safeguard every new session. In addition to building the core functionalities of your app, I can also create a scalable admin dashboard for you to manage user data and tweak pricing from an easy-use interface. Lastly, my comprehensive deployment guides will enable you to smoothly launch your app on TestFlight and Google Play Internal Testing platforms. My commitment to delivering high-quality, production-ready products is unwavering.

@SamreenCoders

Hello, I will build your secure calling platform using WebRTC for real-time HD audio/video, backed by a secure Node.js server with encrypted signaling and token-based session control. All calls, chat, and signaling will be protected with end-to-end encryption, and each login/session will require 2FA (Google Authenticator or SMS via Twilio) before call access is granted. The mobile apps will be developed natively (Kotlin for Android, Swift/SwiftUI for iOS) to ensure a true platform feel, while shared backend logic handles authentication, coin wallet, call metering, and analytics. The coin system will support in-app purchases (Google Play Billing + Apple IAP), real-time balance updates, per-minute deductions, premium unlocks, and a configurable pricing model controlled from a secure admin dashboard—no app redeploy needed for pricing changes. Deliverables include both app source codes, backend server, admin panel, deployment guides, and live TestFlight + Play Internal builds demonstrating encrypted calls, 2FA onboarding, and full coin flow. Ping me to discuss in chat. Warm regards, Samreen Coders

@Videoeditior

Hi, I am an experienced Android developer with a background in computer science and a passion for creating user-friendly and functional apps. My Key points: 1. XML design 2. API Integration 3. Social Integration 4. Payment gateway Integration 5. Firebase Chatting 6. Notification 7. Map Integration etc. Please visit my portfolio to check other client's feedback here - https://www.freelancer.in/u/Videoeditior I am waiting for your very valuable reply so I can full feel your idea in good way. Thank you. Akshay