Our agency will develop a secure fintech mobile app with flutter for ios and android


Vetted Pro
Top Rated
Agency
Vetted by Fiverr Pro
Rain Infotech was selected by the Fiverr Pro team for their expertise.
About this gig
Top Rated Seller | Vetted Pro | 5 Star Reviews | 89% Repeat Buyers | Building software since 2015
We build fintech mobile apps in Flutter one codebase running on both iOS and Android, engineered for apps that move real money.
Free scoping before you pay. Send us your feature list and we will reply with a screen count, timeline, and fixed quote at no cost.
Security is the hard part of fintech, and it is where we started. We have shipped production financial apps to the Play Store, including our own multi-chain wallet with encrypted key storage, biometric login, and transaction signing.
What we build:
- Fintech and banking-style mobile apps
- Payments, transfers, and transaction history
- Wallets, balances, and multi-currency support
- Payment gateway and third-party API integration
- KYC and identity verification flows
- Admin dashboards and reporting
- Biometric login, encryption, and secure storage
Tech: Flutter, Dart, React Native, Firebase, Supabase, Node.js.
Full source code and complete IP ownership on every project. Message us with your screen count and features before ordering.
Don't forget to check out our reviews.
About this agency

Vetted Pro
Agency
37 employees
Top Rated
Rain Infotech is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
Blockchain Development & Solutions
Cryptocurrencies & Tokens
Mobile App Development
Mobile App Maintenance
Software Development
Website Development
- FromIndia
- Member sinceMay 2015
- Avg. response time1 hour
- Last delivery2 weeks
Languages
English, Hindi, Gujarati
Portfolio
FAQ
How much does a fintech app cost?
Most fintech projects run $300–$3,500+ depending on screen count, backend, and whether you need payments, KYC, or compliance flows. Message us with your feature list and we will send a fixed quote before you order.
Do you build for both iOS and Android?
Yes. We build in Flutter, so one codebase runs on both platforms. Your app behaves the same on iPhone and Android, and updates only need to be made once.
How do you handle security?
Encrypted local storage, biometric authentication, certificate pinning, and tokenised API access as standard. No sensitive credentials are hardcoded. We share our security approach before development starts.
Can you integrate payment gateways?
Yes. Stripe, PayPal, Razorpay, and most regional gateways, plus bank and card APIs where the provider offers documentation. Tell us your provider and we will confirm feasibility.
Do you handle regulatory compliance?
We build to support compliance requirements you define — KYC flows, audit trails, data residency. We are engineers, not a compliance or legal advisory. Licensing and regulatory approval remain your responsibility.
Do I own the source code and IP?
Yes. Full source code, repository access, and complete IP ownership on delivery. We sign an NDA before discussing your project if you prefer, and never reuse client code.
Do you submit the app to the App Store and Play Store?
Included in Standard and Premium, available as an add-on for Basic. Fintech apps face extra store scrutiny, so we prepare the required disclosures with you. Apple and Google control review timelines.
Do you provide support after launch?
Every project includes 30 days of bug fixing at no cost. Beyond that we offer monthly maintenance covering OS updates, security patches, and new features.

