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Challenge
SimpledCard needed to consolidate and modernize its mobile infrastructure. The company previously maintained two separate native apps for iOS and Android, which created development overhead and delayed new feature rollouts. As a FinTech app for employee expense management, the product also had to support secure payment processing, receipt capture, prepaid business card usage, real-time expense visibility, and a consistent experience for finance teams, field employees, and managers across European markets.
SimpledCard needed to consolidate and modernize its mobile infrastructure. The company previously maintained two separate native apps for iOS and Android, which created development overhead and delayed new feature rollouts. As a FinTech app for employee expense management, the product also had to support secure payment processing, receipt capture, prepaid business card usage, real-time expense visibility, and a consistent experience for finance teams, field employees, and managers across European markets.
Solution
Mood Up rebuilt both native apps into one cross-platform Flutter application, reducing development complexity while ensuring feature parity across devices. The team integrated Adyen for secure payment processing, implemented QA automation to increase testing coverage, and used CircleCI to support continuous integration. Sentry was added for error monitoring, while Lokalise enabled streamlined multilingual support and faster expansion across Europe.
Mood Up rebuilt both native apps into one cross-platform Flutter application, reducing development complexity while ensuring feature parity across devices. The team integrated Adyen for secure payment processing, implemented QA automation to increase testing coverage, and used CircleCI to support continuous integration. Sentry was added for error monitoring, while Lokalise enabled streamlined multilingual support and faster expansion across Europe.
Results
The unified Flutter app gave SimpledCard faster development cycles, quicker feature delivery, and a consistent user experience across platforms. The product became easier to maintain and better prepared for European growth, with multilingual support, stronger testing coverage, and reduced duplicated work across iOS and Android. Today, the app supports daily financial operations by helping users manage transactions, prepaid cards, and digital receipts in real time.
The unified Flutter app gave SimpledCard faster development cycles, quicker feature delivery, and a consistent user experience across platforms. The product became easier to maintain and better prepared for European growth, with multilingual support, stronger testing coverage, and reduced duplicated work across iOS and Android. Today, the app supports daily financial operations by helping users manage transactions, prepaid cards, and digital receipts in real time.