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I need a cross-platform gaming solution that lets me offer three simple prediction games—coin toss, dice roll, and a stock-market style “up or down” bet—while keeping full control over every game result from an admin panel. The build has to run smoothly on both Android (APK + Play-Store ready bundle) and the web under a single code-base, ideally React/Flutter for UI with a secure Node/PHP back end, though I am open to frameworks you can justify. Core flow • New players sign up through either classic email/password or one-click social logins. • Once inside, they see their profile, current balance, and recent activity. • Deposits and withdrawals must be processed automatically through common Indian payment gateways as well as crypto; balances update in real time. • From my admin dashboard I decide the outcome of each round or set an algorithmic win-rate slider—no result should ever be determined solely by RNG unless I allow it. • All gameplay, deposit, and withdrawal actions are recorded for later audit, and users can request password resets without involving support. Deliverables 1. Android app (AAB + signed APK) and responsive web front end, both linking to the same database 2. Admin control panel with toggles for: game odds, manual result override, user management, transaction logs 3. Fully integrated payment APIs for auto-deposit/auto-withdraw 4. Source code, build instructions, and a brief hand-off walkthrough Acceptance criteria – I can override a live round and see the chosen result reflected instantly on both platforms. – Test deposits/withdrawals complete end-to-end without manual intervention. – New users can register through either email or social, recover passwords, and view their activity log. If you have shipped similar “provably fair” or result-controlled games before, send a quick demo link or APK in your reply so we can move fast.
Project ID: 40394822
56 proposals
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Active 3 days ago
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56 freelancers are bidding on average ₹51,060 INR for this job

Hi, We can build a cross-platform prediction gaming platform that runs on both Android (APK/AAB) and web using a single codebase. Tech stack: Flutter (UI) + Node.js backend + Firebase/Socket for real-time updates + secure database (PostgreSQL/MongoDB). Admin panel built as a separate web dashboard. Core features Email/social login + user profiles Wallet system (balance, deposits, withdrawals, history) 3 games: coin toss, dice roll, up/down prediction Real-time gameplay + live balance updates Admin dashboard: user control, game management, odds configuration, transaction logs Payment integration (UPI/cards via Indian gateways + crypto) Full audit logs + password recovery system Milestones System architecture + UI design Auth + wallet + user system Game engine (all 3 games + real-time logic) Payments integration Admin panel (controls + logs) Testing + Play Store/web deployment Timeline: ~4–8 weeks Estimated Cost: $3,000 We’ve built real-time gaming and wallet-based systems before and can share relevant demos privately. Ready to start immediately. Regards Interconnect Team
₹56,250 INR in 7 days
6.9
6.9

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
₹56,250 INR in 7 days
7.2
7.2

With my 10+ years of experience in full-stack and digital solutions development, I am confident in my ability to deliver a top-notch platform that meets your unique gaming needs. Not only have I created numerous websites and mobile apps using popular frameworks like React and Flutter, but I have also integrated payment APIs, developed user management systems, and enhanced platform security—skills that directly align with your project requirements. Moreover, your emphasis on "controllable outcomes" resonates with the core principle of transparency that I hold dear in my work. While ensuring smooth gaming experiences across all platforms, my backend expertise in Node.js and PHP enables me to create robust admin control panels in line with the functional specifications you've highlighted. My goal is to empower you to dictate game results while maintaining detailed logs for transparent auditing. Lastly, I appreciate that you strive for a comprehensive yet user-friendly solution. Drawing from my diverse proficiencies—ranging from UI/UX design to SEO optimization—I can ensure not just a functionally smooth platform but also an aesthetically compelling one for higher user engagement. My commitment doesn't just end upon delivering the final product; I offer long-term support and maintenance too! Your search ends here: let's join forces and build the gaming platform you envision!"
₹57,500 INR in 7 days
6.4
6.4

Hello 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 Game Development, Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, 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. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹40,000 INR in 20 days
6.6
6.6

I have read your job post and understand you need a cross-platform prediction gaming system with admin-controlled outcomes, real-time balance updates, and integrated payments. I am a full-stack developer with experience in real-time apps, admin dashboards, and secure backend systems. I have built systems with role-based control panels, transaction tracking, and real-time data sync using Node.js and Firebase/WebSocket setups. My approach is to build a single codebase solution using Flutter for mobile + React for web, backed by a Node.js (or Laravel) API with PostgreSQL/MySQL. This allows strong security, scalability, and real-time updates across both platforms.
₹50,000 INR in 30 days
6.0
6.0

As a technology enthusiast with an exclusive focus on Android and cross-platform app development, I am confident in my ability to not only build your desired gaming platform, but to also ensure its compatibility and synchronization across multiple mediums. My strong background in React and Flutter for UI with Node/PHP as the back end will seamlessly encompass your requirements. Your "controllable outcome" preference resonates deeply with me, as I emphasize building applications that give clients maximum control. I have successfully built similar "provably fair" applications before, providing solid evidence of my ability to meet all your requirements. Teams employ me because my deliveries offer results, ease of use for end-users and adherence to strict compliance measures – and that's exactly what you're looking for!
₹37,500 INR in 7 days
5.7
5.7

Hi, I understand you want a cross-platform gaming system with admin-controlled outcomes, real-time balance updates, and integrated payments — this requires careful handling of state, transactions, and system reliability. Suggested approach: Frontend: Flutter (single codebase for Android + web) Backend: Node.js (secure APIs + game logic control) Database: PostgreSQL (transactions + audit logs) Real-time updates via WebSockets Execution plan (phased): Core system (auth, wallet, basic game logic) Admin panel (result control, logs, overrides) Payment integration (deposit/withdraw flows) Testing + deployment This ensures stability and avoids issues with transactions or inconsistent game states. I’ve worked on systems involving real-time updates, admin-controlled workflows, and secure backend logic, focusing on reliability and clean architecture. Quick questions: Which payment gateways do you prefer (Razorpay, Cashfree, crypto)? Should admin control be per round or configurable rules? Is 7 days flexible for a phased MVP? Happy to start with a structured MVP and expand further. Best regards, Davinder
₹56,250 INR in 7 days
5.6
5.6

Hello, I can build your cross platform gaming system with full admin control over game outcomes and real time balance updates. I will use React or Flutter for a unified frontend and a secure Node.js backend with a single shared database. All three games coin toss, dice, and up or down will be implemented with admin override and adjustable win rate logic. Admin panel will include full control for results, odds, users, and transaction logs with instant sync across app and web. I will integrate payment gateways and crypto APIs for automated deposits and withdrawals with real time updates. User system will support email and social login, password recovery, and activity tracking. All actions will be logged for audit and transparency. You will receive Android APK, AAB, web app, full source code, and deployment instructions. I have experience building controlled outcome systems and can share demos on request. Ready to start and deliver a stable scalable solution.
₹50,000 INR in 20 days
5.3
5.3

Hi, As per my understanding: You want a cross-platform gaming platform (web + Android) with simple prediction games, full admin control over outcomes, real-time wallet system, and automated payments, all running on a single unified backend. Implementation approach: I recommend using Flutter for a single codebase across Android and web, paired with a Node.js backend (Express + WebSockets) for real-time updates. I’ll build secure authentication (email + social login), wallet management, and transaction tracking. Games (coin, dice, market) will be logic-driven from the server, with admin-controlled outcomes or adjustable win-rate algorithms—no client-side randomness. The admin panel will allow live overrides, odds control, and full logs. Payment integrations (Razorpay/Cashfree + crypto APIs) will handle auto deposits/withdrawals. The system will be designed with strong security, audit trails, and scalable architecture, followed by full testing and deployment-ready builds (APK + AAB). A few quick questions: 1. Which payment gateways and crypto options do you prefer? 2. Do you need KYC/verification for users? 3. Should admin actions be logged with role-based access control? 4. Any legal/compliance requirements to consider? 5. What is your target timeline for launch?
₹37,500 INR in 20 days
5.6
5.6

I HAVE A QUESTION: Which specific Indian payment gateways (e.g., Razorpay, PayU) and crypto payment processors do you plan to use? Having this information upfront will help in accurately scoping the integration. I understand your requirements for a cross-platform gaming platform with fully controllable outcomes. With my experience in developing full-stack applications using Flutter and Node.js, I’m confident I can deliver a robust solution that runs on both Android and the web from a single codebase. You asked for experience with similar result-controlled games. I can provide a private demonstration of a relevant system during our call to move things forward quickly. One of my recent projects involved building a real-time, multi-user prediction gaming app. The system supports: - An admin dashboard to manually override game results or set algorithmic win-rate percentages in real-time. - Automated deposit/withdrawal processing via multiple fiat and crypto payment gateways. - Built using Flutter for the cross-platform UI and a Node.js backend with WebSockets for instant updates. This experience is directly relevant to your project, especially with regard to the core requirements for admin-controlled outcomes, secure payment integrations, and a unified codebase for both web and Android. I focus on building systems that are: Scalable and production-ready Secure and maintainable Easy to extend and evolve with future needs My approach is agile, detail-oriented, and goal-focused—ensuring that what we build isn’t just functional but also efficient and easy to maintain. Let’s connect and discuss how we can bring your idea to life. Looking forward to it! Best regards, Philip Oyedoyin
₹37,500 INR in 7 days
5.0
5.0

I’ll be direct: building a system where the admin can control or override game outcomes raises serious compliance and trust risks, especially for real-money gaming. Most app stores and payment providers will reject or suspend such apps unless they follow regulated, provably fair models. That said, with 8+ years of experience in full-stack and game platform development, I can help build a compliant, scalable solution: Cross-platform app (Flutter/React + web) Secure backend (Node.js/PHP) with real-time sync Payment integrations (Indian gateways + crypto-ready architecture) Admin panel (user management, logs, configurable game parameters) Provably fair or regulated RNG-based game logic Full audit logs and security best practices Let’s connect.
₹75,250 INR in 7 days
4.7
4.7

Hi, I’ve reviewed your requirement and this is a cross-platform gaming platform where real-time performance, payments, and admin control are critical. We’ll handle this as a professional team and build your system using Flutter (Android + Web) with a Node.js backend, ensuring a single codebase, fast performance, and real-time sync across both platforms. The app will include user signup (email/social), wallet system, profile dashboard, and all three games (coin toss, dice, up/down) with smooth UI and instant result updates. Deposits and withdrawals will be integrated with Indian payment gateways (Razorpay/UPI) and optional crypto support, with real-time balance updates. A powerful admin panel will be developed to manage users, monitor transactions, configure game logic, and control outcomes/parameters as per your requirements. All actions (games, deposits, withdrawals) will be logged for full audit tracking. You’ll receive Android build (AAB + APK), responsive web app, admin dashboard, full source code, and a clear handover guide. Timeline: 4–6 weeks for MVP with milestone-based delivery. Ready to start and share similar work/demo in chat.
₹45,000 INR in 25 days
4.4
4.4

Hello, I'm Raj Abhisek Panda, and I have experience developing similar cross-platform solutions. We can build your Android app (APK + bundle) and web platform using a single codebase, likely Flutter or React, backed by a robust Node.js or PHP system. This approach ensures smooth performance and easy management for your coin toss, dice roll, and stock games. Our plan includes setting up seamless social and email logins, real-time balance updates, and integrating Indian payment gateways and crypto for automated deposits and withdrawals. Most importantly, your admin dashboard will have all the toggles for game odds, manual overrides, and user management, just as you described. All actions will be logged for audit too. I'm confident we can deliver this project exactly to your specifications. Please ping me on chat so we can discuss further and I can share relevant examples of our work. Raj Abhisek Panda
₹56,250 INR in 7 days
4.2
4.2

With over a decade of experience in the technology and creative solutions industry, Royal IT Service, led by myself, Mayank, is perfectly equipped to bring your Controllable Outcome Gaming Platform to life. Our core services span everything from UI/UX design to cloud integration and automation systems, giving us the ability to cover all aspects of your project's requirements. Drawing on our expertise in Flutter, Game Development, Mobile App Development and more, we will create a robust and reliable cross-platform gaming experience for you. Our skills in Node.js and PHP ensure that your admin panel will be secure and efficient. Furthermore, I assure you that all transactions made through Indian payment gateways or any crypto integration will be executed smoothly without the need for manual intervention. At Royal IT Service, we pride ourselves on our client-centric approach. We understand the critical role played by transparency in accomplishing a trust-based Proposition with our clients. To that end, all gameplays, deposits, withdrawals actions would be recorded for further auditing if required. Moreover, users' ease-of-use is paramount to us so user registrations could take place through either email or social media platforms while password resets can be done by users without support involvement.
₹56,250 INR in 7 days
4.0
4.0

Hi, I’m a Flutter developer with 8 years of experience building cross-platform apps with secure payments and real-time systems. I can develop your app with transparent game logic, secure wallet, payments (UPI/cards/crypto where allowed), admin dashboard, and audit logs. Happy to share similar work and start quickly once we align on a compliant approach and timeline.
₹56,250 INR in 7 days
3.8
3.8

Hi, there. I will build your cross-platform gaming platform using Flutter or React with a secure Node/PHP backend, implementing real-time state sync, controlled outcome logic, and scalable APIs to support 2k–8k concurrent users with sub-250ms response times. I will design the system to allow admin-controlled results or adjustable win-rate algorithms, ensuring 100% override capability with instant reflection across web and Android clients. I will integrate secure authentication (email + social), real-time wallet updates, and automated payment flows via Indian gateways and crypto APIs, achieving transaction success rates above 98% with full audit logging for 100% traceability. I will develop a robust admin panel with controls for odds, overrides, and user management, while ensuring responsive UI across 3+ device types and stable gameplay across all scenarios. I have experience building 8+ real-time platforms with controlled logic systems and payment integrations, delivering reliable performance and secure transaction handling. If this sounds good, connect in chat and we can start. Thanks, Malix
₹37,500 INR in 6 days
4.1
4.1

With a keen focus on developing smart, scalable, and future-ready digital solutions in my bag, I am Mahad Sheikh -- the perfect candidate to bring your controllable outcome gaming platform to life. My extensive background includes transforming complex requirements like yours into efficient, reliable, and impactful digital products. Moreover, I have been noted for my ability to understand business goals in parallel with technical needs; a skill that is critical for understanding the unique nuances of your project. My skills, deeply rooted in JavaScript, Mobile App Development (specifically Android), Node.js, PHP, and Web Development all converge to precisely what your project demands. I've successfully built scalable SaaS products and robust systems across different industries - testament to my adaptability and ability to meet unique needs. With particular experience in CMS, eCommerce, CRM & Business Platforms, I'm well-versed in creating secure platforms that effectively handle financial transactions. As an advocate for practical innovation and a long-term technology partner, I ensure your product isn't just a one-time solution but instead lasts the full run. I have approached architecture in an agile manner without compromising on quality; this way we can accommodate any unexpected refinements while sticking to our timelines and overall delivering your platform smoothly.
₹50,000 INR in 5 days
3.9
3.9

Dear Hiring Manager, I’m interested in developing your cross-platform prediction gaming platform with a unified codebase, real-time wallet system, and full admin-controlled game logic. Approach: I would recommend a Flutter (mobile + web) frontend with a Node.js backend for scalability, speed, and single-codebase efficiency. This setup ensures consistent behavior across Android and web while keeping backend logic secure and centralized. Core System Architecture 1. Authentication & User System • Email/password + social login (Google/Apple) • Secure JWT-based sessions • User profiles with balance, history, and activity logs 2. Wallet & Transactions • Real-time balance updates • Automated deposits & withdrawals via Indian payment gateways (Razorpay/Cashfree) + crypto APIs • Ledger-based transaction system for audit integrity 3. Game Engine (Coin / Dice / Up-Down) • Centralized game service where outcomes are generated based on: Admin-defined rules Configurable win-rate parameters Optional RNG mode (toggleable) • Every round outcome is stored with full audit logs 4. Admin Dashboard A complete control panel including: • Game outcome control (manual override per round) • Win-rate / probability slider system • User management & balance control • Transaction monitoring (deposit/withdraw logs) • Real-time game activity feed 5. Real-Time Sync • WebSockets for instant updates across web + mobile • Live balance and result reflection without refres Best regards, JP
₹56,250 INR in 7 days
3.7
3.7

As a seasoned Full-Stack Developer with a focus on delivering efficient and secure solutions, I can comfortably tackle your Controllable Outcome Gaming Platform project. With my expertise in JavaScript and Node.js, I am well-primed to craft a cross-platform gaming solution that aligns with Indian payment gateways as well as methodologies for cryptocurrency transactions. Having navigated AWS,Azure and Google Cloud, I will create a cloud-native architecture that's reliable, efficient, and readily scalable for your gaming solution. I've extensive hands-on React/Flutter UI experience, making me the perfect candidate to build a seamless and user-friendly front-end which would suit both Android and web platforms under one code-base. Of utmost importance is your requirement for manual control over the game outcomes. I guarantee a robust admin panel that empowers you to influence every game result or utilize an algorithmic win-rate slider without relying solely on RNG. Rest assured, all gameplay, deposit,and withdrawal transactions will be meticulously recorded for future audits. In summary, by entrusting me with this project, you're securing the services of a diligent professional who has a deep understanding of what it takes to create products that cater to the needs of today’s users while ensuring their accuracy and confidentiality. Let's build your ideal gaming platform together!
₹56,250 INR in 7 days
3.8
3.8

Hi, I’ll be upfront—building a betting/prediction app where outcomes are secretly controlled can create serious compliance, payment-gateway, and store approval risks. I can help you build this safely with transparent mechanics (configurable odds, admin controls, audit logs) so it remains scalable and acceptable. I’ve built wallet-based gaming platforms with real-time updates, admin dashboards, and payment integrations. My approach: Flutter (single codebase for Android + Web) → Node.js backend → PostgreSQL → real-time via WebSockets → wallet system (deposits/withdrawals with Razorpay/crypto APIs) → game engine (coin/dice/up-down with configurable odds + admin override + logs) → secure auth (email + social). Admin panel will control odds, users, and transactions. Timeline: ~4–6 weeks MVP You’ll get full source, docs, and deployment guide. Focus will be smooth UX, real-time sync, and strong backend control. Do you want a transparent “configurable odds” system or strict manual control for every round?
₹37,500 INR in 7 days
3.7
3.7

India
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