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I will build flutter app, fintech app, crypto wallet app, payment app, bank app
James F
About this gig
Looking to build a secure and high-performing fintech or crypto wallet app? You're in the right place. I specialize in Flutter app development, delivering modern, scalable, and responsive mobile apps for Android and iOS that users trust.
From digital banking apps and payment transfer apps to crypto wallet and investment platforms, I create seamless user experiences with a focus on security, speed, and UI/UX design. Every app is built with Flutter, ensuring clean code, smooth performance, and easy scalability.
My Expertise Includes:
- Flutter app
- Fintech app
- Crypto wallet app
- Banking and payment app
- Money transfer system
- Blockchain integration
- Firebase or Node.js backend
- User authentication & KYC system
- Push notifications & API integration
- Dashboard & admin panel
- Wallet balance tracking & transactions
- App deployment to Play Store & App Store
Each project comes with top-tier UI/UX design, data encryption, and secure API integrations to ensure reliability and compliance with fintech standards.
Whether you're launching a fintech startup, building a crypto exchange wallet, or developing a banking app for your customers, I'll bring your vision to life with precision
Get to know James F
James F
From Design to Deployment, Your Complete Mobile App Developer
- FromUnited Kingdom
- Member sinceOct 2025
- Last delivery9 months
Languages
English, French, German, Spanish
Hi, I’m James a professional Flutter developer and mobile app expert with years of experience creating fast, secure, and visually stunning apps for Android and iOS. I specialize in cross-platform Flutter development, combining elegant UI/UX design, powerful backend integration, and seamless performance. Whether you need a dating app, crypto wallet app, fitness app, healthcare app, or delivery app, I’ll turn your idea into a world-class mobile solution, from concept to launch. I also offer app maintenance, API integration, bug fixing, and app store submission to ensure lasting success.
My Portfolio
FAQ
Can you build both Android and iOS versions of the app?
Yes! I use Flutter, a cross-platform framework that lets your fintech or crypto app run smoothly on both Android and iOS with one codebase.
Do you develop secure crypto wallet or payment gateway apps?
Absolutely. I specialize in crypto wallet development with secure API integration, data encryption, and two-factor authentication (2FA) to ensure transaction safety.
Can you integrate blockchain and real-time payment features?
Yes, I can integrate blockchain APIs, smart contract connections, and real-time money transfer systems depending on your app’s requirements.
Do you provide complete backend development and APIs?
Yes. I handle both frontend and backend using Firebase, Node.js, or Laravel, ensuring your app has a stable and scalable foundation.
Will my app support KYC, login, and transaction history?
Of course! Your app can include KYC verification, user authentication, transaction history, and account balance tracking for financial transparency.
Do you design the app UI/UX or should I provide one?
I offer full Figma UI/UX design services for fintech and crypto wallet apps, built for modern, intuitive, and user-friendly experiences.
Can you connect third-party APIs or banking systems?
Yes. I can integrate payment gateways, banking APIs, crypto exchanges, and other third-party services your app requires.
Do you help with app publishing and deployment?
Yes, I’ll assist with publishing your app to Google Play and App Store, following all compliance and fintech security standards.
Will I get post-launch support and maintenance?
Yes, I provide free bug support for a limited time and offer long-term maintenance and update packages upon request.
