Karaca

Karaca is a 50-year-old heritage brand. It evolved from a small glass workshop into a global omnichannel brand. Karaca serves customers through hundreds of stores and digital channels in 43 countries. With over a million monthly active users, the team determined that their native app development strategy was a bottleneck. Maintaining two separate codebases for iOS and Android consumed a significant amount of time and energy. Instead of building features that mattered to customers, they spent time fixing inconsistencies between the two apps.

Why Flutter?

Karaca chose Flutter to achieve speed, consistency, and scalability. Flutter offers the flexibility to design and code once and deploy everywhere. This ensures every Karaca customer gets the same elegant experience regardless of their device without compromising quality.

Their solution

The team rebuilt the entire user experience in Flutter from the ground up. Throughout the process, they rigorously tested every feature to ensure the experience exceeded the previous version. They shipped their first Flutter feature within a few months. By following Flutter's optimization guidelines, they resolved unnecessary widget rebuilds and inefficient layouts to achieve smooth, native-like performance.

The versatility of Flutter's ecosystem helped Karaca scale. They leveraged pub packages like camera for their after-sales support flow to capture images of invoices. They also used the Google Maps widget to present store locations through an intuitive interface. When they needed to use specific native payment packages without a pub package, they used Flutter's Add-to-App approach to build integrations that power payment flows while using native dependencies in the checkout flow.

Results

Today, Flutter powers Karaca's entire app experience, resulting in significant improvements:

• 2x faster shipping: Karaca now ships new features twice as fast.
• Rapid deployment: They shipped their first Flutter feature within a few months of starting the rewrite.
• Scalable experience: They deliver a consistent, elegant experience to over a million monthly active users across 43 countries.