Firebase
Firebase used as a backend for Sudoku Ultimato: handling real-time data, user state, and analytics for a cross-platform mobile app.
Firebase projects
17 Jan 2026
Sudoku Ultimato
A free Sudoku app with no ads, no subscriptions, and no pop-ups. Built with Flutter for iOS and Android with offline play, hints, and daily puzzles.
Firebase articles
8 Feb 2026
Building a Multi-Language Sudoku App for iOS & Android
A developer's honest account of shipping a Flutter Sudoku app to the App Store and Play Store, including localization, store submissions, and lessons.