Hey Otti

Otti is a German trainer for the whole journey, A1 to C2 and it respects your time and your data.
Over 10,000 graded words, each with an example sentence, a memory aid, and translations in English and Chinese. When single words stop being enough, there are 89 grammar lessons, 2,000+ verb tables, 90 reading passages where every word is tappable, and 300 idioms with the stories behind them. Reviews run on FSRS, the spaced-repetition algorithm modern Anki uses: hard words come back soon, words you know get out of your way. No account. No ads. No subscription. Works fully offline on the train, in the mountains, wherever. One purchase, yours for good. Made independently, with an otter.


Otti 是一款覆盖 A1 到 C2 的德语学习应用，尊重你的时间，也尊重你的数据。
一万多个分级单词，每个都配有例句、记忆提示和英中双语释义。单词之外，还有 89 节语法课、
两千多张动词变位表、90 篇任意单词可点按查词的阅读文章，以及 300 条带出处讲解的习语。
复习采用 FSRS 间隔重复算法（新版 Anki 同款）：记不牢的词很快回来，已经会的不再打扰你。
无账号，无广告，无订阅，完全离线。一次买断，永久使用。
独立开发，附赠一只水獭。