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I’m looking to have a Yoyo-style real-time voice chat application built for Android. The core idea is a fun, drop-in audio experience where users can jump into themed rooms, talk freely, and spend or earn coins along the way. Core functionality • Voice Rooms – low-latency audio (Agora, WebRTC, or a comparable SDK) with host controls, mute, and basic moderation. • Login – support both classic Email/Password and SMS-based Phone Number verification. • User Profiles – each account holds a profile picture, short bio, and friend list that updates in real time. • 1-to-1 & Group Chat – text messaging that ties back to each voice room and friend connection. • Wallet / Coin System – virtual currency balance, in-app purchase hooks, spend/earn actions, and purchase history. • Admin Panel – web-based dashboard for user, room, and coin management plus ban/report handling. Acceptance will be based on: 1. Smooth, <300 ms average voice latency in normal 4G conditions. 2. Clean Material-style UI that passes Google Play’s accessibility checks. 3. Secure login flows with encrypted credential storage and OTP verification. 4. Accurate coin balance updates on every transaction, persisted after relaunch. 5. Admin panel actions (ban, coin grant, room deletion) reflecting instantly in the app. Hand-over items • Full Android Studio project (Kotlin preferred) with clear package structure. • README covering build steps, SDK keys placement, and backend/API endpoints. • Deployed admin panel URL and source. • One test APK plus screen-recorded walkthrough showing all above criteria met. If you’ve shipped similar real-time audio apps or wallets before, this should be a straightforward collaboration. I’m ready to review your proposed architecture and timeline.
Project ID: 40476414
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Active 6 days ago
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22 freelancers are bidding on average ₹31,234 INR for this job

As an experienced Full Stack Developer with over a decade of expertise, I believe I'm the ideal person to bring your voice chat app project to life. Over the years, I have specialized in crafting both Android and iOS applications, which includes extensive proficiency in Java and Kotlin - the exact languages you're looking for. Moreover, my proficiency in Mobile App Development stretches from Flutter to Android, making me flexible and capable enough to adapt to specific project requirements like yours. I've also had the privilege of developing complex systems such as the one you are looking for, incorporating features such as real-time audio streaming, messaging, in-app purchase hooks, and UI/UX design that meets Material-style standards. What further sets me apart from others is my unwavering commitment to security in every phase of development. Rest-assured that your users' credentials will be protected and their encrypted storage handled skillfully. Lastly, let's not undervalue the importance of long-term support. Even after successful project Hand-over, I'll stick around to ensure smooth operations. My dedication combined with my immense skill set makes me the technical force you need by your side for this project. So let's chart this incredible app journey together!
₹9,999 INR in 7 days
6.4
6.4

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. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django and php CodeIgniter mvc and Laravel. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹30,000 INR in 7 days
6.6
6.6

With over 10 years of hands-on experience in Android app development and using Kotlin specifically, Paper Perfect is without a doubt the ideal team to take on this project. We've demonstrated expertise in building real-time audio applications that resonate with the Yoyo-style experience you're aiming for. In addition, we understand the importance of low-latency voice, so your users can enjoy virtually lag-free communication. Our past experiences have resulted in average voice latency below 300ms even under normal 4G conditions. Architecting a clean Material-style UI won't pose any challenges to us either. We've got an intimate understanding of Google Play's accessibility checks and will carefully ensure the app doesn't just look good but ticks all the accessibility boxes too.
₹1,050 INR in 7 days
3.9
3.9

Hello! Your vision for a Yoyo-style Android voice chat app with low-latency audio, secure logins, real-time profiles, chat, a robust coin system, and an admin panel is truly exciting. Leveraging my strong **Firebase/Django backend expertise**, I can flawlessly build the entire backend infrastructure, API, wallet/coin system, and the web-based admin panel you require. This ensures secure transactions, real-time data updates, and instant admin actions. While the Android UI would involve collaboration, my backend will guarantee smooth functionality and meet your strict latency and security acceptance criteria. I'm keen to discuss your proposed architecture and timeline. Warmly, Nikhil Ch...
₹5,000 INR in 3 days
3.7
3.7

My name is Khaled Aboshama. - B.S in Computer Engineering - At least 10 years of relevant Android development experience - I have successfully delivered more than 10 Android applications, ranging from small-scale projects to complex, enterprise-level solutions. - Support mobile applications +3M users - Expert in understanding business requirements and translating them into technical requirements - Expert analysis, design, implementation, testing, releasing and maintaining mobile code - Expert Understanding of large, and complex code bases - Mentoring juniors and seniors engineers. - Manage the full technical life-cycle of Android application for each development phase. - Experience in Java language +6 years and Kotlin language +5 years - Excellent time management skills - Strong focus on high-quality mobile UI experiences - Working closely with designers and product manager I can do this job at a low price for giving a high review rate. Thank you for your time and consideration. I look forward to speaking with you about this opportunity.
₹1,050 INR in 7 days
1.0
1.0

In a world increasingly driven by connectivity, I understand the importance of seamless and immersive communication experiences. Equipped with my robust network development and mobile app management skills, I'm perfectly positioned to deliver your Android Voice Chat App. With your desired functionality in mind, I propose leveraging on Agora or WebRTC SDKs to ensure low-latency audio functionality, while implementing host controls and basic moderation for optimum user experience. Using Kotlin in Android Studio, I'll develop a clean Material-style UI that not only appeases Google Play's accessibility requirements but also captures the fun-themed essence of your app. Security is paramount in digital space; I appreciate your need for secure login flows. With my proficiency in Java and Mobile App Development, your users' sensitive information will be encrypted, ensuring proper OTP verification for airtight security. Additionally, drawing from my experience building successful wallets before, precise coin balance updates will be guaranteed on every transaction - a persistent feature that won't get disrupted by relaunching.
₹900 INR in 7 days
0.0
0.0

I have 10 years experience on Android development field and iOS app development field. I have Also experience on website development field. I will complete your project in 7 days
₹1,050 INR in 7 days
0.0
0.0

Hello, I can build your Android voice chat app with a focus on high performance and scalability. With experience in Android development, backend API integration, and automation, I’ll ensure smooth real-time communication and secure user management for a robust and reliable app.
₹800 INR in 2 days
0.0
0.0

hi, my name ashish ,I will do my best ,dont worry , 15500inr ,but what do need of this should I suggest another thing call me on my phone 7667198029
₹1,050 INR in 5 days
0.0
0.0

i have already worked these type of app also i added ai in voice recognition to auto replay contact me fast i will fullfill your requirement
₹35,000 INR in 7 days
0.0
0.0

Hi, I'm Krish, an Android developer with direct experience in the exact areas your project demands. In MentorAI I achieved sub-300ms API response latency with Azure + REST, and in EcoTrackU I built real-time Firebase sync across 50+ concurrent users with sub-500ms latency — both map directly to your acceptance criteria. For this project I'd use Agora RTC for voice (easily hits your <300ms target on 4G), Firebase Auth for Email/Password + Phone OTP, Firestore for profiles, friend lists, and chat, Google Play Billing for the coin/wallet system, and a React + Firebase Admin SDK web panel for the dashboard. All admin actions (ban, coin grant, room deletion) will reflect instantly via Firestore listeners. Deliverables: full Kotlin Android Studio project with clean package structure, README with build steps and SDK key placement, deployed admin panel with source, test APK, and a screen-recorded walkthrough covering all five acceptance criteria. Krish Agarwal | github: Krish250706
₹1,600 INR in 5 days
0.0
0.0

Hi, I can help you develop your mobile application with a clean UI, smooth performance, and scalable architecture. Please message me so that we will have a detailed discussion. I have 6+ years of experience in mobile app development and design and have experties in ReactNative, Node.js, API integrations, Android & iOS app development. You will get: ✅ Responsive mobile app ✅ Clean UI/UX ✅ Fast and optimized performance ✅ Backend/API integration ✅ Long-term support I can start immediately and would love to discuss the project details. Regards Prachi Agrawal webix Infotech
₹1,000 INR in 12 days
0.0
0.0

Hi, I’m interested in working on your real-time voice chat app. I have 2+ years of experience in full-stack and mobile app development, including real-time systems, authentication, APIs, and scalable backend architecture. I understand your requirements for low-latency voice rooms, secure login, real-time chat, wallet/coin system, and admin management. I can build a clean, scalable, and performance-focused solution using Agora/WebRTC, secure authentication, real-time updates, and a well-structured backend. I focus on clean code, smooth UI/UX, and reliable performance. I’d be happy to discuss the architecture, timeline, and best technical approach for your app. Looking forward to working with you. Best regards, Ishant Gupta
₹1,050 INR in 7 days
0.0
0.0

Hello, I have reviewed your requirements for the Android voice chat application. I can develop the voice rooms, authentication, chat system, wallet features, and admin panel with a clean and scalable architecture. I would like to discuss the backend stack, payment integration, and deployment requirements before finalizing the timeline. Looking forward to working with you. Regards, Kartik
₹2,500 INR in 7 days
0.0
0.0

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