Crypto Trading Mobile App Development

@installerpoint

Hi, Aapke non-custodial crypto trading app ke liye main detailed scope ko structured MVP aur full-scope phases mein organize karke clear implementation plan de sakta hoon. Proposed architecture mein Node.js backend, multi-chain JSON-RPC failover, self-custodial wallet, DEX spot trading, Hyperliquid-style perpetuals, ERC-4337 gasless transactions, bridging, background jobs, and secure trade permissions cover honge. Main pehle wallet security, transaction simulation, slippage and liquidation safeguards, audit logging, and testnet validation ko prioritize karunga. Isse MVP ko safely launch karke KYC, admin reporting, notifications, limits, and suitability checks ko subsequent phase mein add karna practical rahega. Scope review ke baad cost breakdown, weekly timeline, maintenance options, and relevant DeFi integration experience transparently provide karunga. Check out my portfolio here:- https://www.freelancer.com/u/installerpoint Best Regards, Muhammad Adeel

@jafarali14

Hi Sir Madam I am a Flutter developer with 5 plus years of experience building secure fintech and API driven applications. I understand this is a complex non custodial Web3 platform requiring careful wallet, blockchain and trading integrations. I recommend React or Flutter for the mobile first frontend with Node.js and PostgreSQL for the backend, using reliable EVM providers and secure Web3 libraries. The architecture can support BNB Chain, Arbitrum, DEX trading, EIP 712 orders, ERC 4337 smart accounts and perp DEX integration. Scope Self custodial multi chain wallet Spot DEX trading and limit orders Perpetual trading and positions Gasless transactions Bridge deposits and withdrawals Trading and transaction history Admin audit logs and reporting KYC limits notifications and suitability checks Price protection and trade audit logging I suggest MVP delivery in 10 to 14 weeks for Spot, Perp and Wallet, with the complete scope taking around 14 to 18 weeks after final API and compliance requirements are confirmed. I can provide a fixed price after reviewing the selected exchange, bridge, wallet and provider APIs. Hourly development is also possible. Testing, deployment, documentation and post launch support can be included. Published apps EasyBalance App Store Wynette Logistics App Store MyKidsEdu App Store We can discuss the architecture, detailed cost breakdown and milestones in chat. Thanking you All the very best Cheers

@FizzaNadeemK

Hi, main aapke non-custodial crypto trading app ke liye Node.js backend, BNB Chain/Arbitrum, DEX spot trading, Hyperliquid perpetuals, self-custodial wallet, ERC-4337 gasless transactions, bridging aur complete mobile-first frontend develop kar sakta hoon. Main Backend, Blockchain integrations, Frontend/UI, Testing aur Deployment ka separate cost breakdown ke saath MVP aur full-scope timeline bhi provide karunga, including KYC, admin panel, limits, notifications, suitability checks aur audit logging. Architecture security, transaction safety aur scalability ko focus mein rakh kar design ki jayegi, aur launch ke baad maintenance/support bhi available rahega. Main scope review karke fixed-price aur hourly dono estimates share kar sakta hoon aur immediately start kar sakta hoon.

@developper69

Aapke non-custodial crypto trading app ka scope kaafi substantial hai: BNB Chain aur Arbitrum par spot DEX trading, Hyperliquid-style perpetuals, self-custodial wallet, gasless ERC-4337 transactions aur bridging ek unified mobile-first experience mein chahiye. Main Node.js backend, multi-chain RPC failover, wallet flows, DEX/order integrations, position management aur responsive trading UI ko modular architecture ke saath structure karunga. Security-sensitive signing, permissions aur agent-wallet withdrawal restrictions ko implementation ka central hissa rakha jayega. MVP ko pehle Spot, Perps aur Wallet ke core flows tak limit karke launch risk kam kiya ja sakta hai. Uske baad KYC, admin audit logs, limits, notifications, suitability checks aur trade safeguards ko staged releases mein add karna practical rahega. Initial scope validation ke baad backend, blockchain integrations, frontend, testing, deployment aur post-launch maintenance ke separate fixed-price aur hourly estimates provide kiye jayenge. Regards, Muhammad

@umer419

Hello, I checked your project "Crypto Trading Mobile App Development" and already have a clear understanding of your requirements and how to deliver them efficiently. I have solid experience in PHP, Mobile App Development, Node.js, and I've successfully completed similar projects by delivering high-quality, scalable, and reliable solutions. Why choose me? * Strong expertise in PHP, Mobile App Development, Node.js * Clean, optimized, and scalable implementation * Fast communication and regular progress updates * Focused on delivering results, not just completing the task I'm ready to start immediately and would be happy to discuss the details. Best regards, Umer

@HamzaBnoui

The main risk here isn’t the UI—it’s getting the custody, agent-wallet permissions, ERC-4337 gas flow, bridging, and perp execution boundaries right before integrating everything. I’d start by mapping those flows and provider choices, then build the Node.js/RPC and wallet foundation first, followed by spot/perps and the mobile trading UI. You’d get an early working MVP slice to validate the architecture before the remaining integrations, testing, and production deployment on Railway or equivalent. My GemReserve Platform experience includes KYC, payment workflows, investor portals, admin systems, and production deployment, which maps well to the supporting operational side of this app. For the MVP, which exact providers are mandatory for spot DEX, perps, bridging, account abstraction/gas sponsorship, and authentication, and are smart-contract development/audits required or integration only?

@codeandcommand

For a crypto trading app, the real work is in live price feeds, wallet integration, and secure order execution, that is where builds break under load. I would use Flutter for one codebase across iOS and Android, with Node.js handling exchange API calls. I can start today. Budget and timeline here are early estimates, numbers come after we walk through the full scope together. Happy to build a quick free demo of the wallet integration before you commit.

@bojans9

Hello Hope you are doing well "Secure Non-Custodial Crypto Trading Platform" - I can build it using React Native, Node.js, Web3, EVM, DEX, and Hyperliquid integrations. I can implement self-custodial wallets, Spot and Perpetual trading, multi-chain balances, gasless transactions, bridging, authentication, and transaction tracking. I will develop trading interfaces, order management, background jobs, wallet transfers, security-focused testing, deployment, and maintainable blockchain integration architecture. Would you like the MVP architecture designed around BNB Chain, Arbitrum, and Hyperliquid first? Looking forward to working with you.

@nikkibraiam

Hi, I'm a Web3/blockchain developer with real experience building non-custodial crypto apps (Node.js backend, EVM integrations, self-custodial wallets). I understand the real challenge here: the security model hinges on the agent-wallet pattern — the perp/DEX integration must only ever have trade permission, never withdraw access, so users stay fully self-custodial even while the app executes on their behalf. That boundary is the hard part, not the UI. Given the full scope (multi-chain spot+perps, gasless ERC-4337 accounts, CoW-style off-chain orders) is substantial, I recommend a focused Phase 1: ✓ Node.js backend with multi-chain JSON-RPC proxy (BNB Smart Chain + Arbitrum) and node failover ✓ Self-custodial wallet with email-based login (Privy or equivalent) ✓ DEX spot integration (PancakeSwap router) with agent-wallet trade-only permissions ✓ Transaction history via block-explorer API I've built this type of non-custodial architecture before. I work fast (10 days for Phase 1), don't ask questions mid-project, and deliver exactly what you need—nothing less. Let's build this right.

@nakabirik

Hi, I am Muheebwa. I understand you need a non custodial crypto trading app with spot trading on DEX, perpetual futures, and a built in self custodial wallet, so users do not need a separate wallet app. Backend on Node.js with multi chain JSON-RPC reads and failover, block explorer history, perp exchange integration through an agent wallet with trade only permissions, background jobs, and email login. What usually matters most here is the agent wallet model, since a perp integration with trade only permissions is what protects user funds, and any code path that could sign a withdrawal breaks the non custodial promise. A common issue is gasless transactions, since ERC-4337 with ERC20 gas payments depends on a paymaster that has to be funded and monitored, and when it runs out, transactions fail silently and users see a wallet that will not move. My approach would be to define the wallet and signing model first, then wire multi chain reads and bridging, build spot trading with DEX and signed limit orders, integrate the perp venue under trade only permissions with careful margin math, monitor the paymaster, build the SPA with wallet flows, then test end to end. KYC, admin, limits, and notifications quoted separately. Looking forward to hearing from you.

@ApieTech

Non-custodial spot DEX plus perpetuals with a built-in self-custodial wallet, gasless via ERC-4337 with gas paid in ERC20, and cross-chain bridging. The listed budget is clearly a placeholder, so here is a real breakdown instead of a number. Effort split for the MVP (spot, perps, wallet): blockchain and Web3 integrations about 40 percent, backend with the multi-chain JSON-RPC proxy and failover 20 percent, frontend 25 percent, testing 10 percent, deployment 5 percent. The chain layer dominates because the agent-wallet perp model, EIP-712 signed limit orders and the 4337 paymaster flow are where the real risk sits - not the UI. We would quote fixed price per milestone rather than hourly, with boundaries at wallet, then spot, then perps. Timeline: roughly 14 to 16 weeks for the MVP, plus a further 6 to 8 weeks for KYC, admin with audit logs, deposit caps, notifications and the price-deviation guard. Maintenance after launch we run as a monthly retainer. Experience: we built a crypto trading platform for BrightFunded; blockchain and Web3 is one of our verticals, and Node with React Native is our core stack. Team of 20. One question: is Hyperliquid fixed, or open to another perp DEX? That single choice moves a large part of the integration cost. - APIE Technologies

@indreshpnk

Hello, I understand you need a non-custodial crypto trading app with DEX-based Spot trading, Perpetual Futures, and a built-in self-custodial wallet supporting BNB Chain and Arbitrum. The goal is to deliver a secure, scalable Web3 trading platform with a smooth mobile-first experience. Here’s what I can provide: * Node.js backend with multi-chain RPC, background jobs, and blockchain transaction tracking * DEX, Hyperliquid, EIP-712, ERC-4337, bridging, and wallet integrations * Mobile-first trading UI with Spot/Perp screens, balances, orders, positions, and history I bring over 4+ years of experience in Node.js, React, MongoDB, APIs, AWS, and full-stack development, with a strong focus on scalable backend systems and secure application architecture. Just to clarify a few things: * Do you already have preferred providers for RPC, smart accounts, bridging, and authentication? * Should KYC, admin, limits, notifications, and audit logging be included in the initial MVP? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha

@hakan1022

Hi, Mujhe ek crypto trading app banwani hai, jaisa neeche describe kiya hai. Mainne pehle ek similar project ka development kiyaa tha, ek non-custodial crypto trading app jiska backend Node.js server aur blockchain integrations se jude the. Mainne is project mein JSON-RPC proxy ke liye multi-chain support aur node failover implement kiya tha. Block-explorer API se transaction history aur perp exchange integration ke liye agent-wallet model ka upyog kiya tha. Background jobs ke liye transfer status check aur fee-rate poll implement kiya tha. Mujhe lagta hai ki is project ko aage badhaane ke liye, maine apne previous experience ka upyog karke block-explorer API se transaction history aur perp exchange integration ke liye agent-wallet model ka upyog karke kaam kar sakta hoon. Main apne previous experience ka upyog karke is project ko successful complete kar sakta hoon. If I use my previous experience, your project will likely be completed successfully. Hope to discuss this in detail. Through detailed discussion, I think I can find the better solution to finish your project successfully. Thank you.

@nintysix96

The bid amount and timeline shown are rough placeholders for now. We'll firm up real numbers after a quick chat about the full scope. You're looking to build a non-custodial crypto trading app from the ground up. Not just a basic swap interface, but a full-blown platform: DEX spot trading, Hyperliquid-based perpetual futures, and a self-custodial multi-chain wallet baked right in so users never need to leave the app. The goal is a clean, mobile-first experience where someone can deposit, trade spot on PancakeSwap, open a levered perp position on Arbitrum, and manage their wallet all in one place. That's a meaningful scope and we want to make sure we get the details right before quoting firm numbers. Here's how we'd approach this: - Backend: Node.js on Railway with a multi-chain JSON-RPC proxy (failover across providers), Privy for email-based auth, and background workers handling fee-rate polling and transfer status checks. - Web3 layer: EVM support for BNB Smart Chain and Arbitrum, PancakeSwap router for market orders, EIP-712 off-chain signed limit orders, and Pimlico (ERC-4337) for gasless transactions paid in ERC-20. - Perp integration: Hyperliquid API for order placement, position tracking, and cancellation via the agent-wallet model with trade-only permissions, no withdraw access. - Bridging: Across Protocol for cross-chain deposit and withdraw flows between supported chains. - Frontend: React Native (or Flutter if you prefer) mobile-first SPA, dark and light themes fully separate, spot screen with 25+ pinned coins, perp screen with leverage slider and liquidation estimate, in-app wallet with multi-chain balances and transfer flows. The optional pieces you listed (KYC, admin panel, deposit caps, notifications, onboarding assessment) are meaningful add-ons. We can quote those as a separate phase or bundle them in depending on your roadmap priorities. After a short scope chat we'll put together a written proposal covering deliverables, timeline and a firm price. Want to jump on a quick call this week to walk through it? Best, 96 Studio

@pandaymano8

Drawing on my experience as a Full-Stack Developer, I am confident that I can deliver the crypto trading app you require. With a keen eye for detail, appreciation for scalability and long-term reliability, I will ensure we meet the backend, blockchain integration and frontend-UI needs outlined in your project description. Having worked extensively with Node.js and PHP, I am well-equipped to handle the challenge and fluidity of blockchain reads and proxy configurations while ensuring your app maintains multi-chain support, accurate transaction history and seamless DEX integration. Furthermore, my skills in mobile app development and prior experience in DeFi/DEX integrations make me an ideal candidate for this project. I understand the nuances of agent-wallet models, like those used in perpetual futures trading platforms, which will streamline my work integrating order placement, position tracking and cancellation features. Lastly, given my emphasis on long-term value creation, support service post-launch is no issue as well! My reputation has always hinged on delivering work of the highest quality for clients' business growth. Please find your detailed cost breakdown and timeline (for both MVP and full scope) enclosed with this message. I look forward to hearing from you soon about moving forward with this project! Let's build something powerful together.

@mikaeelg1

I can develop a secure and user-friendly crypto trading mobile app tailored to your specific requirements. My experience includes building fintech apps with real-time data integration and secure transaction processing. I focus on clean UI/UX design, robust backend architecture, and seamless integration with exchange APIs for efficient trading features. Quick question before I suggest an approach: Do you already have wireframes or a detailed written specification?

@shiannep15

Hey — saw your post about building a crypto trading app. One common pain point is ensuring real-time data accuracy and trade execution speed, which is critical for user trust. Quick question: Do you have a preferred tech stack or are you open to suggestions based on scalability and security? I’ve developed secure trading apps handling live data feeds and fast transactions before. If you share your full scope or any initial designs, I can review and give you a clear plan.

@wilmerae

Thank you so much for sharing the details. I went through the scope, and this is much more than a normal crypto trading UI. The difficult part is making the wallet, spot trading, perpetuals, gasless transactions, bridging, and background blockchain work feel like one simple product for the user. I’d approach this in stages rather than trying to build everything at once. First, I’d establish the wallet/auth and multi-chain foundation, then connect spot trading, Hyperliquid-style perpetuals, transfers and transaction tracking. After that, the gasless smart-account flow, bridging, limits, audit logging and the remaining operational features can be added and tested properly. For the frontend, I’d keep the mobile-first experience you described, including the separate light/dark themes, trading calculators, positions, orders, balances and swipeable navigation. One important point: I would want to confirm the exact providers and contracts before giving a final fixed quote, because those choices can significantly affect both development and testing time. I can provide a detailed MVP/full-scope breakdown after reviewing your preferred providers and technical starting point. If you already have a PRD, Figma, or architecture document, send it over and I’ll review it.

@samnangy4

Hi, maine aapka complete scope review kiya. Yeh simple trading app nahi, balki multi-chain non-custodial DeFi platform hai, isliye main ise modular architecture mein build karunga taaki Spot, Perps, Wallet aur future compliance modules independently maintain ho saken. Main handle kar sakta hoon: • Node.js backend, JSON-RPC proxy, failover & background jobs • BSC + Arbitrum EVM integration • DEX spot swaps & transaction tracking • EIP-712 signed order architecture • Hyperliquid/perp integration for orders, positions & cancellations • Self-custodial wallet with secure signing model • ERC-4337 smart accounts/gas abstraction • Cross-chain bridge integration • Privy-style email authentication • React mobile-first trading UI with dark/light themes • Live prices, balances, leverage, PnL/liquidation calculations & order history • Testing, deployment, monitoring and documentation For security, private keys will never be stored as ordinary backend secrets, and agent permissions will be restricted to required trading actions without withdrawal authority. KYC, admin/audit reporting, limits, notifications, suitability checks and trade-risk guards can be implemented as separate modules. Mera background APIs, real-time trading architecture, React, Node/Python, databases, WebSockets aur secure integrations mein hai. Exact cost/timeline architecture review aur selected providers ke baad lock karna safest rahega.