A calmer, better way
to learn German

Heidi is a calm, beautiful way to build real German vocabulary. At its heart are 3,092 carefully chosen words — each on a quiet card with its article, an English meaning and a natural example sentence. Hear every word and sentence in a warm, native-quality German voice, slow it down to catch each sound, and tap for a gentle hint when you're stuck. Practise both ways — recognising German and recalling it — with calm spaced review that brings words back just before you'd forget them. Beyond the cards, a growing library of resources makes it click: der / die / das gender guides, grammar cheat-sheets, ready-to-use email and letter templates, exam preparation, conversation prompts and printable study sheets — plus a quiet progress view of everything you've mastered. No ads, no streaks, no pressure — just steady, daily progress.

Yes. Try 10 cards free, no account needed. When you're ready, the monthly plan starts with a 7-day free trial.

Monthly is €11, annual is €79 (the best value), and there's a one-time Lifetime option at €149 that's yours forever — no recurring charge.

No. Heidi is ad-free and doesn't track you. It's designed to be calm and respectful of your attention, never extractive.