About
A tutor for your German grammar.
GrammarFlow listens to you speak German, catches the grammar you keep getting wrong, and walks you through it — the way a real coach does. No streaks to game. No points to farm. Just the structures you've mastered, the ones you haven't, and what to work on tomorrow.
The premise
Grammar isn't memorized. It's demonstrated.
Most language apps measure you by streak length and vocabulary count. Both are easy to game and neither tells you whether you can actually use German in a real sentence.
GrammarFlow is built around a different idea: a structure is mastered only when you produce it correctly across real conversations — not when you tap the right answer on a quiz. The whole product follows from that one premise.
What it does, exactly
Four things. That's the whole product.
It listens to you speak
Voice-first conversation. Talk in German, the coach catches the grammar in real time and replies — no wall of red, no quizzes you forget by lunch.
It remembers your patterns
Cross-session mistake tracking. Your weak structures by name, with the exact sentences you slipped on and why. Surfaced again before you forget.
It measures what matters
23 grammar structures across CEFR A1–C1. The map fills in as you demonstrate each one in real conversation — not in a multiple-choice quiz.
It coaches, not gamifies
No streaks. No leaderboards. No notifications shaming you for missing a day. Just a quiet read on what you can do, and what to look at tomorrow.
Contact
Say hello.
Bug reports, feature requests, or just to tell us what you're working on in German.