One Codebase, Two Platforms: How ING Wholesale Banking Unified Mobile Development with Flutter

ING Wholesale Banking migrated the mobile application from native Android and iOS to Flutter. This session shares the real story—strategic decisions, technical challenges, and honest results.

We’ll cover why we chose Flutter for enterprise banking, how we approached the migration, challenges with security and compliance, integration with native infrastructure, team transformation, and what worked (and what didn’t).

You’ll learn practical patterns for complex enterprise applications, performance optimization techniques, platform integration strategies, and whether Flutter is right for your B2B product.