Production AI Agents by CS

300 general questions plus the 10 for your federal state, and a 33-question mock exam in 60 minutes, as in the German citizenship test.

Swiss naturalization test — the smartest, most comprehensive, most fun way to become Swiss.

English Master is a comprehensive, fully offline learning app designed for all Turkish speakers who want to learn English from beginner to intermediate level.

Learn a new language through things you actually care about — with a learning experience that adapts to you.

See your Anki study streak at a glance — as a heatmap or a clean streak counter on your home screen.

Nihǎo Chinese is a calm, distraction-free pocket guide for starting Mandarin and growing to an intermediate level.

Word Review turns the words you meet in real life into flashcards you'll actually remember.

Verata is an app for studying Reformed theology methodically — and for having the historical confessions of the church always at hand.