Fintech Mobile Suite
A regional bank needed to modernize their mobile banking experience. Their existing native apps were outdated, slow, and expensive to maintain with separate iOS and Android codebases. They wanted a single codebase that could deliver native performance while supporting new features like biometric authentication and real-time notifications.
At a glance
- Category: Flutter Mobility
- Year: 2023
- Client: Regional Commercial Bank
01 / Business Challenge
- Separate iOS and Android apps meant double development and maintenance costs.
- App crashes occurred 2-3 times per week, frustrating users.
- Transaction processing took 8-12 seconds, causing user abandonment.
- No biometric authentication, requiring users to enter passwords repeatedly.
- Push notifications were unreliable, missing critical alerts.
02 / Our Approach
How we executed this engagement in practice. The phases below describe the delivery rhythm we use across ServiceNow, custom engineering, and mobile programs.
We chose Flutter for cross-platform development, allowing us to maintain a single codebase while delivering native performance. We built the app with a focus on security, implementing biometric authentication, encryption, and secure API communication. We optimized the transaction flow to minimize latency and built a robust notification system.
Phase 01
Discovery & alignment
Workshops, process and systems review, success metrics, and scope clarity.
Phase 02
Design & planning
Architecture, experience and workflow design, risks, and a concrete delivery plan.
Phase 03
Build & validation
Implementation, integration, testing, demos, and refinements with your teams.
Phase 04
Go-live & enablement
Controlled rollout, training and documentation, handover, and post-launch tuning.
- Built Flutter app with single codebase for iOS and Android.
- Implemented Face ID, Touch ID, and fingerprint authentication.
- Optimized API calls reducing transaction time from 12s to 2s.
- Built real-time notification system using Firebase Cloud Messaging.
- Created offline mode for viewing balances and transaction history.
- Integrated fraud detection system with real-time alerts.
- Added multi-currency support for international transactions.
Business Impact at a Glance
App crashes reduced from weekly to less than 0.1% of sessions.
Transaction processing time decreased from 12 seconds to 2 seconds.
User adoption increased by 180% in first 6 months.
App store ratings improved from 2.8 to 4.6 stars.
Development costs reduced by 40% with single codebase.
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