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12NM – Build a New Professional Mobile App + Web Platform We are looking for an experienced developer or small development team to build a new professional version of our 12NM platform for iOS, Android and Web. 12NM already exists as a working PWA prototype. It was created quickly and in a simplified way because the first version was developed by someone without professional programming experience. Because of this, the current version has many limitations, bugs, performance problems and things that are difficult or impossible to change. We do NOT want to simply convert the current PWA into a mobile application. We want to build a new and much better 12NM platform based on the existing concept, features and experience we already have. The current PWA is only a reference/prototype. It does not have to be copied 1:1. We are open to completely redesigning the UI/UX, architecture and individual functions and rebuilding them properly. The final product should be a modern, fast, reliable and visually attractive mobile application for iOS and Android together with a full Web version, all connected to the same backend, accounts and data. What is 12NM? 12NM combines a private community, communication, poker, games, gamification and collectible content in one ecosystem. The main idea is: Community + Chat + Poker + Games + XP + Challenges + Characters + Pets + Cards + Dice + Inventory + Shop + Events + Rewards Users should have a reason to return to the application regularly, communicate with other members, play games, compete, earn XP, unlock items and participate in events. Community / “Plachta” A major part of 12NM is Plachta, our internal community and communication system. Conceptually, it should work similarly to Discord, but with additional features that Discord does not provide for our community. We want channels, posts, replies, reactions, mentions, private messaging, unread counters, online status, typing indicators, realtime communication and push notifications. The community should also have a strong voting system. Users should be able to create and participate in polls, including different voting methods such as normal polls and D21-style decision/voting systems. The exact voting logic will be defined in more detail during development. Plachta should feel like a real modern community platform, not simply a comment section. Poker 12NM has a dedicated Poker section. The actual poker games are played on ClubGG, while 12NM provides the community and management layer around the poker club. The Poker section should include tournament information, schedules, results, player profiles, statistics, league standings, points, rankings and tournament history. Results should be automatically imported from ClubGG where technically possible. The imported results should be usable by the 12NM system for league points, statistics, XP, achievements and rewards. Games 12NM should contain multiple games and mini-games. Examples include Solitaire and other casual or competitive games. Games should be connected to the 12NM ecosystem instead of being isolated features. Games can provide XP, achievements, rewards, challenges, event points and collectible items. The architecture should make it possible to add new games in the future without rebuilding the whole application. XP and Gamification XP is one of the core systems of 12NM. Users earn XP through activity throughout the platform. Examples include creating posts, replying, participating in the community, playing games, participating in poker tournaments, winning, completing challenges, participating in events and other activities. XP should have a complete history so the system can show why XP was earned or removed. Users progress through levels and can unlock new content and rewards. The system must also prevent abuse and unlimited XP farming. Challenges Users should be able to challenge other users for XP. For example: User A challenges User B for 500 XP. User B accepts the challenge and they compete in a supported game or activity. The winner receives the agreed XP reward. The system should manage challenges, invitations, acceptance/rejection, status, XP stakes, results, automatic XP transfer, history and notifications. Challenges should be designed so they can later be connected to different games and activities. Characters, Pets and Collectibles A major part of the 12NM concept is a collection of unique visual characters and items. Users should be able to collect: Characters, Pets, Cards, Dice, Avatars, Cosmetic Items and Special/Limited Items. We create the artwork ourselves. The visual style should be approximately 2.5D, between modern 2D and 3D, with the possibility of animations, effects and different visual states. Characters and items can have rarity, special editions, seasonal versions and event versions. They can be earned through XP, levels, poker results, games, challenges, events, achievements or purchased in the shop. Inventory Every user should have a personal inventory containing everything they own. Users should be able to view, filter and organize their items and select/equip them where appropriate. The inventory must be designed to support additional item types in the future. Shop 12NM should have an internal Shop where users can acquire or purchase characters, pets, cards, dice, avatars, cosmetic items, special items, bundles and limited/event content. The shop must be dynamic. Administrators should be able to create and edit products, images, descriptions, prices, rarity and availability without requiring a new application release. Events The platform should support temporary and seasonal events such as Halloween, Christmas, summer events, poker championships, community events and anniversaries. An event can contain special games, challenges, XP, rewards, characters, pets, cards, dice, shop items, announcements and a special visual theme. Events should have start/end dates and be fully configurable. Dynamic Themes A very important feature is dynamic visual themes. We want to be able to change the appearance of the application without publishing a new iOS or Android version. For example, Halloween could change the colors, backgrounds, banners, artwork and other visual elements. Themes should ideally be schedulable with start and end dates. Admin Panel / CMS We need a powerful web-based Admin Panel through which the whole platform can be managed. Administrators should be able to manage users, roles, community channels and content, tournaments, ClubGG results, league settings, games, XP rules, levels, achievements, challenges, characters, pets, cards, dice, inventory, shop products, events, themes, banners, rewards and push notifications. The goal is that normal changes to content and game systems can be made without needing a developer every time. Mobile + Web The final solution must include: iOS application + Android application + full Web version. All platforms must share the same accounts, backend, database, XP, inventory, achievements, results and user progress. We are open to technologies such as Flutter, React Native or another appropriate cross-platform solution. We care about quality, speed, stability and maintainability rather than a specific technology. Quality Requirements The new application should be: - Fast - Reliable - Scalable - Secure - Modern - Easy to maintain - Easy to expand - Optimized for real mobile devices Push notifications, realtime communication, loading, synchronization and database performance are especially important because these are major problems in the current prototype. Most Important The existing 12NM PWA is not the final product. It is a prototype and reference showing the concept and some existing functionality. We want a developer who can take the idea and build it properly as a new professional product, with a better architecture, better UI/UX, better performance and much greater flexibility. We are not looking only for someone to fix the current PWA and we are not looking only for someone to wrap it into a mobile application. We want to build the next version of 12NM properly for iOS, Android and Web. We can provide the current 12NM application, source code and a demo/reference version so interested developers can understand the current concept and functionality. Please include your experience with mobile applications, Web applications, realtime communication, push notifications, gaming/gamification, social/community platforms, admin systems and cross-platform development, as well as examples of similar work.
Project ID: 40746111
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203 freelancers are bidding on average $390 USD for this job
––>>> **12NM – PWA to iOS & Android <<<–– Hello, I understand that 12NM already has a working PWA, backend and database, so the first step should be a proper technical audit—not a complete rewrite. I can review the existing architecture, identify performance/realtime/push issues, stabilize the platform and then extend it into professional iOS, Android and Web apps. Features: ➜ Existing codebase & architecture audit ➜ PWA performance optimization ➜ API/database optimization ➜ Reliable realtime communication ➜ Push notification fixes ➜ Flutter/React Native mobile apps ➜ Discord-style community & messaging ➜ ClubGG tournament integration ➜ Games & gamification framework ➜ XP ledger, levels & achievements ➜ Challenges & rewards ➜ Characters, pets, cards & inventory ➜ Dynamic shop & seasonal events ➜ Admin Panel/CMS Let’s chat… Thanks
$640 USD in 15 days
9.4
9.4
Hi — Elias here from Miami. I understand you’re looking to develop a professional mobile app and a web platform. Creating a seamless user experience is crucial for your business goals. What usually matters most here is ensuring the app is scalable and maintainable. A common issue in systems like this is managing the complexity of user roles and permissions as your user base grows. The tricky part is integrating the backend efficiently while keeping future expansions straightforward. I would approach this by structuring the system with a modular architecture, allowing for easier updates and scalability. Using React Native or Flutter for the mobile app ensures cross-platform compatibility while maintaining a high-quality user experience. I’ll also prioritize robust backend integration and automated testing for reliability. I’ve worked on similar mobile and web projects that required careful attention to user workflows and backend efficiencies, helping to avoid potential pitfalls. A few questions to better understand the scope: Q1 – What specific user roles do you envision for the app? Q2 – Are there existing backend systems that need integration? Q3 – What are your expectations for scaling the app in the future? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$400 USD in 4 days
8.7
8.7
Hello, 12NM Community & Gaming Platform {{{ I HAVE WORKED ON SIMILAR COMMUNITY, GAMING, REALTIME AND MOBILE PLATFORMS BEFORE AND I CAN SHOW YOU }}} I have 11+ years of full-stack development experience and can first audit the existing 12NM PWA rather than unnecessarily rebuilding it. I will review the frontend, backend, database, APIs, realtime communication, loading performance and push notifications, then provide a clear technical audit with fixes, priorities and estimates for the next stages. After stabilization, I can continue with the cross-platform iOS/Android app while maintaining the Web/PWA, including: • Discord-style community, realtime chat, notifications and presence • ClubGG tournament/result integration, poker rankings and statistics • Games, XP ledger, levels, achievements and challenges • Characters, pets, cards, dice, inventory and configurable shop • Events, seasonal content and dynamic themes • Web-based Admin Panel/CMS for managing the platform without code changes • Shared accounts, progress and data across Web, iOS and Android I will focus on performance, scalable architecture, realtime reliability, security and maintainability, while reusing the existing working functionality wherever practical. I can provide the initial audit first, with a fixed price after reviewing the repository and demo. Thanks, Christina
$255 USD in 7 days
8.4
8.4
Hi, CnEL India can rebuild 12NM as a new scalable platform rather than simply converting the existing PWA. Our methodology: * Audit the current prototype to understand existing workflows, features and limitations. * Define the new architecture, database model, APIs and shared account/data structure. * Build iOS and Android using React Native, alongside the full responsive Web platform. * Develop realtime community features including channels, messaging, reactions, mentions, presence and notifications. * Implement XP, levels, challenges, achievements, inventory, collectibles, events and configurable rewards. * Build the games/gamification architecture so additional games can be added without rebuilding the core platform. * Integrate ClubGG data where supported by its available API/data access. * Develop dynamic shop, themes and event configuration through a powerful admin CMS. * Implement secure backend APIs, RBAC, validation, synchronization and abuse controls. * Optimize realtime communication, database queries, mobile performance and push notifications. * Perform functional, device, API, realtime, security and performance testing. * Deploy with documentation and structured handover. We recommend starting with architecture, authentication, community, XP and core admin foundation, then expanding the platform module by module.
$395 USD in 15 days
7.0
7.0
Hi, I understand that 12NM already has a working PWA, backend, database, and core features, but needs a careful technical audit before further development. I would first review the frontend, API, database queries, loading flow, realtime communication, and push notifications to find the real causes of the speed and reliability issues. Then I would suggest practical fixes instead of rebuilding parts that already work. After stabilization, I can help move the platform forward across iPhone, Android, and Web/PWA while keeping accounts, progress, XP, inventory, events, shop data, and notifications consistent. The mobile app should support the community features, challenges, games, ClubGG result integration, and flexible admin controls. I would also keep future games, themes, rewards, and item types easy to add through the admin system. My experience with iPhone and Android development, Mobile App Development, and API integration would fit this staged approach. I can provide a clear audit report with technical findings, priorities, and estimates for the next phases. Could you share the current technology stack, repository structure, hosting setup, and demo access so I can assess the audit scope accurately? I would be glad to review the demo and existing codebase, then outline the safest path to a faster and more reliable 12NM platform.
$500 USD in 15 days
6.6
6.6
Hello!, This is James from Hollywood... I read your 12NM project carefully, and the main pain point is clear: turning an existing platform into a polished iOS and Android app without breaking the backend, data flow, or user experience. That’s exactly the kind of job I take seriously. My approach would be: 1. Review the current platform, APIs, and database structure 2. Map the mobile user flows so the app feels clean and easy to use 3. Build the app in React Native or Flutter based on the best fit 4. Test across devices, edge cases, and backend sync 5. Fix, polish, and prepare for release with a stable handoff I focus on practical execution, not just coding. That means clear communication, careful QA, and making sure the final app actually works well in real use. Relevant work I’ve handled includes: - a fitness booking app with live scheduling - a logistics tracker with admin dashboard sync - a service marketplace app with push notifications - a subscription-based content app with secure user access A few quick questions so I can scope this properly: 1. Is the current platform already API-ready, or do you need backend adjustments too? 2. Do you want a full rebuild in React Native/Flutter, or an extension of existing mobile code? 3. What are the must-have flows for v1 so we can prioritize the right features first? If you want someone who will pay attention to the details and keep the build clean from day one, I’d be glad to discuss it.
$350 USD in 3 days
6.6
6.6
Your biggest risk here is not building “another version” of 12NM too early, but carrying the current performance, realtime and notification issues into iOS/Android as well. I’d start with a structured audit of the existing PWA, backend, database queries, API flow, websocket/realtime behavior and push setup, then map what should be optimized, refactored, or kept so you avoid an unnecessary rewrite. I’ve worked on systems where the real challenge was stability across live content, user activity, and cross-platform behavior rather than just UI delivery. For a platform like yours, the important part is tracing where latency, stale state, failed realtime events and notification gaps are actually happening, then defining a phased path for web retention plus mobile rollout. My hourly rate for this kind of work is $20/hr, and this bid is for the initial audit/report stage only. - What is the current stack for the PWA, backend and realtime layer? - Do you already use FCM/APNs directly, or a wrapper service for push? - Can you share whether ClubGG result import is already partially implemented or still planned?
$500 USD in 8 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. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$255 USD in 14 days
6.5
6.5
Hi, I can help rebuild 12NM as a proper cross-platform product instead of simply converting the existing PWA. I have experience with Flutter, React, Python/Django, real-time systems, REST APIs, databases, and scalable web applications. I can work on the shared backend, mobile + web apps, real-time chat, notifications, gamification, XP, challenges, inventory, shop, events, and admin management with a structure that can grow as new games and features are added. I’d first review the existing PWA and identify what should be reused as a reference and what should be rebuilt properly. The new architecture should keep accounts, XP, inventory, achievements, and other user data shared across iOS, Android, and Web. Could you share the current PWA/demo and source code so I can understand the existing functionality and estimate the development phases accurately?
$200 USD in 7 days
6.4
6.4
Hello, I can help rebuild 12NM as a professional, scalable platform for iOS, Android and Web—not simply wrap or convert the existing PWA. I would use the current version as a functional reference while rebuilding the architecture, UX and performance properly. I can develop: • Cross-platform mobile apps + full Web platform • Shared backend, database, authentication and user progress • Real-time Plachta community, chat, presence, typing and notifications • Posts, replies, reactions, mentions and advanced polls/voting • Poker tournaments, rankings, statistics and ClubGG integration • Modular games/mini-games architecture • XP, levels, achievements, challenges and anti-abuse controls • Characters, pets, cards, dice, collectibles and inventory • Dynamic Shop with configurable products and limited items • Events, seasonal content and scheduled dynamic themes • Powerful Admin Panel/CMS for users, content, games, XP, rewards, shop and events • Push notifications, synchronization, security and performance optimization I’ll first review the existing prototype and define what should be retained, redesigned or rebuilt. The new architecture will be modular so future games, items, events and features can be added without major restructuring. I can also provide clean documentation, testing and a maintainable codebase for long-term development. I’d be happy to review the current 12NM prototype and discuss the development milestones.
$100 USD in 7 days
7.6
7.6
Hey there, I see you're looking to elevate your existing 12NM platform into professional iOS and Android apps. Your goal seems to be creating a seamless mobile experience that enhances user engagement and functionality. I’ve carefully gone through your project details, and I get that you need someone who can handle both the mobile app development and backend management. It would help to clarify if you have specific features in mind for the apps or any existing APIs to integrate. To minimize risks, I suggest an initial phase focusing on wireframing and gathering user feedback before diving into development. This would ensure the final product aligns with user needs and expectations. I have a solid background in mobile development with React Native and Flutter, and I’ve built similar projects like an internal CRM for a property agency and a regional booking platform for a tutoring company. Looking forward to discussing how we can bring your vision to life!
$400 USD in 5 days
6.6
6.6
Hey there, I understand 12NM needs a proper rebuild, not a PWA wrapper, with shared iOS, Android and Web experiences connected to one backend. The key challenge is bringing community, realtime chat, poker data, games, XP, collectibles, inventory, events and dynamic themes into one maintainable ecosystem. I would structure the platform around modular services and shared data models so new games, rewards, item types and events can be added without rewriting the core. I would also prioritize realtime communication, push notifications, synchronization, performance, security and an admin CMS that keeps content and game configuration independent from app releases. How is ClubGG currently accessed or integrated, and do you already have an API or approved integration method for importing tournament results? Looking forward to working together. My portfolio and client reviews, https://www.freelancer.com/u/zainalitariq245 Best regards, Zain Tariq.
$400 USD in 10 days
6.6
6.6
Hi, I'm Denis, a full-stack developer who has built community and gaming platforms with real-time communication, user progression systems, and cross-platform mobile apps. I understand 12NM's core challenge: it's a real-time social platform with gaming mechanics, where the critical issues are instant reliable communication, consistent XP and inventory across devices, and handling real-time updates without performance degradation. Technical debt in your PWA likely stems from data flow, real-time update management, and concurrent backend operations. I've audited legacy architectures, identified bottlenecks in real-time systems and push notifications, and rebuilt critical paths without starting over. I've also built admin panels enabling non-technical teams to manage game content, events, and inventory without coding. My approach: First, a technical audit to identify actual problems—inefficient API calls, poor real-time subscriptions, database performance, or push infrastructure. Then stabilize core systems before expanding mobile. For the mobile layer, I'll evaluate React Native or Flutter based on your backend architecture and requirements, not preference. The main risk is over-engineering without understanding the existing codebase. I'd review what's working and only replace what's genuinely broken. I can start immediately. Let's discuss the details. Thanks, Denis.
$10 USD in 8 days
5.8
5.8
Please initiate the chat so we can thoroughly discuss the requirements for the app, prior to the start. Happy to provide the final budget in chat. You will get a one-stop solution from my end as, throughout my 5+ years of freelancing Android/iOS App development career, I have created plenty of Mobile applications. I ensure to give the best quality app with good performance and responsive attractive UI and I have provided the clients with excellent results. I have expertise in Swift, React Native, Node.js, React.js, Angular, Laravel, and PHP. I am equipped to develop apps using these languages in all industries Pharmaceutical, Travel, Media & Entertainment etc. I also handle backend integrations for third-party collaborations on your systems. well versed in Mobile App Development in-App-Purchases, User Authentication, User Profile Creation, Location, Chat and Messaging, Map Integration, Payments, Social Media Account Integration, and many more to show. Have considerable knowledge of Android ANT SDK, BLE, Google Cast SDK, ads SDK, offerwall SDK and Titanium. I use libraries such as Sherlock Action Bar, OpenGL, Media Framework, and WebKit to build IoT integration app solutions. I am always interested in making long term professional relationships with my clients to ensure that every project becomes successful. So, if you hire me, I can assure you that you will not regret your decision. Best Regards Tejash J.
$255 USD in 7 days
5.8
5.8
As an experienced Python developer, I specialize in customized web automation and data extraction - skills that would be highly valuable for rebuilding your existing 12NM platform. With over 13 years of experience, I've developed numerous tailored solutions across various sectors, creating high-impact, result-driven applications. Recently, I've successfully completed projects similar to yours, such as AI-powered chatbots and BOT installations. Given the complex nature of your project and the need for scalability in incorporating new features in the future without rebuilding the entire application, my in-depth understanding of AI solutions and my skill with Trading Bots make me well-prepared. In leveraging my proficiency with python web scraping+automation & SQL based jobs , I guarantee delivery of a modern, fast, reliable and visually pleasing application exactly tailored to meet your specific needs. Let's discuss further how we can transform your prototype into a robust platform. Let's get started!
$350 USD in 2 days
5.7
5.7
Your PWA is slow, realtime features are flaky and push notifications miss users. That’s driving away community activity and costing retention. 12NM turns into a go-to place for poker, games and community where users actually come back, with smooth Discord-style chat, working notifications and admin control over shop, events and themes. First I get hands-on with your current PWA, backend and database to pinpoint the real causes for lag and unreliable real time. Then I lay out exactly what needs fixing or refactoring, so you can decide next steps with full clarity. Once optimized, I show you how to manage content, themes and shop items without needing a developer. Updates come as I go so you won’t have to chase me for status. Can you send access to your reference version so I can see where things stand now?
$205 USD in 21 days
5.8
5.8
Hi, 12NM stands out because it is not just a mobile app—it is a complete ecosystem combining community features, poker engagement, games, XP progression, collectibles, events, challenges, and rewards. Before discussing a rewrite, I fully agree that the first step should be a detailed technical audit of the existing platform to identify performance bottlenecks, realtime issues, notification failures, database/API inefficiencies, and architectural limitations. My approach would be to analyze the current PWA, backend, database structure, realtime communication flow, and push notification pipeline, then provide a prioritized audit report with actionable recommendations, estimated effort, and a roadmap for stabilization and future mobile deployment. I have experience working on gaming-focused applications, gamification systems, mobile platforms, backend integrations, and scalable user experiences. A few questions: What technologies power the current PWA and backend? Which realtime solution is currently being used? Are iOS and Android apps expected to share a single codebase? Regards, Muhammad Asad Ali
$300 USD in 7 days
5.7
5.7
Hi, I can help improve and develop 12NM across Web, iOS and Android. I have experience with Flutter, React, backend APIs, realtime systems, push notifications and admin panels. I can first audit the existing platform, fix performance/reliability issues, and then continue development without an unnecessary rewrite. I’m ready to review the current system and start with the audit. Thanks, Sohail
$255 USD in 7 days
5.4
5.4
hello there , I can help take your existing 12NM PWA to a stable, professional iOS + Android + Web platform. I would start with a technical audit of the existing frontend, backend/API, database, realtime architecture, loading performance, push notifications and PWA to identify the actual bottlenecks before making architectural decisions. I can handle: PWA performance, API/database optimization and reliability fixes Flutter/React Native mobile apps sharing the existing backend/data Discord-style community: channels, posts, replies, reactions, mentions, DMs, online/typing status and realtime updates ClubGG integration for poker tournaments, results, leagues, rankings and statistics Modular games/mini-games architecture XP ledger, levels, achievements, challenges and XP-based rewards Collectibles: characters, pets, cards, dice, avatars, rarity and seasonal items Inventory, Shop, bundles and configurable items Events, seasonal content and scheduled dynamic themes Admin/CMS for users, content, games, XP, rewards, shop, events, themes and notifications Reliable push notifications across iOS/Android App Store, Google Play and production deployment I can work with your existing source code, backend and database, preserving the working functionality while refactoring only where necessary. Final development estimate will be provided after reviewing the codebase and demo. I can also provide ongoing development and maintenance after launch. thanks
$250 USD in 7 days
5.3
5.3
As a seasoned Full Stack Web and Mobile App Developer with a focus on Backend Development and Mobile App Development, I believe that my skillset aligns perfectly with the needs of your 12NM project. With over 5 years of real-world experience under my belt, I have successfully created scalable and user-friendly applications for various clients around the globe. My proficiency in React Native, Node.js, Laravel, PHP, HTML, CSS, JavaScript, API integration, and database management make me the perfect fit for your project. Throughout my career, I've excelled in creating complete solutions from ideation to deployment, be it business websites, SaaS applications or e-commerce platforms. The quality of my work is something that I always prioritize by ensuring clean, optimized and maintainable code. Additionally, my proficiency extends to performance optimizations and UI/UX-friendly design to guarantee an exceptional user experience on all platforms. Keeping open lines of communication is vital in successful projects; this is something that I strongly uphold. I'll work closely with your team to translate your vision into reality. My commitment towards on-time delivery coupled with a drive for meeting clients' expectations makes me the developer you can rely on for end-to-end support. Your project deserves an experienced hand who understands the importance of a robust backend aligned with well-integrated frontend applications - I'm confident I can deliver just that.
$255 USD in 7 days
5.4
5.4
Poděbrady, Czech Republic
Member since Oct 29, 2025
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