Modern mobile banking application with biometric auth & instant UPI transfers · Nexasoft case study

Modern mobile banking application with biometric auth & instant UPI transfers

Native iOS and Android banking app replacing outdated web wrappers.

Client
Urban Co-operative Bank
Licensed Scheduled Urban Bank
Location
Gujarat
Timeline
16 weeks from prototype to NPCI certification and app store release
Headline result
4.8★
Average user app store rating

Overview

A licensed scheduled bank serving 450,000 customers had an outdated web-wrapper mobile app suffering from 2.1-star ratings, frequent session timeouts, and lack of modern payment support. Nexasoft engineered a secure native mobile banking suite with biometric login, instant UPI 2.0 payments, deposit management, and real-time fraud alerts.

The challenge

  • App store rating was 2.1★ with thousands of negative reviews citing payment crashes.
  • Absence of NPCI-certified UPI payments forced younger customers to switch to neo-banks.
  • High fraud vulnerability and non-compliance with latest RBI mobile application guidelines.
  • Cumbersome branch-dependent account management processes.

What we built

  • Developed high-performance native iOS and Android apps with frictionless biometric face/fingerprint authentication.
  • Integrated certified NPCI UPI SDK allowing instant peer-to-peer and merchant QR payments.
  • Built end-to-end fixed deposit creation, passbook downloads, and card freeze features directly in-app.
  • Implemented device binding, root detection, and real-time transaction risk scoring.

Results

App Store & Play Store rating across 38,000+ verified customer reviews
4.8★
Increase in active monthly mobile banking users within 6 months
3.2x
Reduction in routine branch footfall for passbooks and fund transfers
68%
Payment security breaches or credential theft incidents recorded
0

Architecture

  • Flutter framework with native platform security bridges.
  • Encrypted SQLite storage with SQLCipher and hardware Keystore/Keychain key protection.
  • Hardened API gateway with dynamic payload signing and certificate pinning.
  • Active-active microservices backend connected to FIS and Finacle core systems.
“Nexasoft transformed our mobile banking experience from an embarrassment to a proud competitive advantage. Our younger customer base grew by 40% in six months.”
Bhavin P., Managing Director

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