Keep the course. Keep the words, too.

Set up a deck next to your course

Two tools, two jobs

A course app chooses the words for you and brings them in an order that builds on itself. That is what makes it a good place to start. But the course is the same for everybody, and your vocabulary is not: the words you get wrong, the words you need for your job, the words from a series you watch. repeat.cards is where those words live. It does not teach and it does not compete with the course — it runs next to it and keeps what you have met.

A routine after each lesson

1. Make one deck for the language. Pick the language you are learning and the one you learn from. For Spanish, German, French, Portuguese, Italian, Russian and English the deck comes with the right grammar fields preset.
2. After the lesson, add three to five words. The ones that were new or that you got wrong. Type the word, press Translate, and pick the meaning the lesson used.
3. Let AI fill in the card. One press each for an example sentence, the pronunciation, a picture, or a mnemonic when the word will not stick.
4. Review when repeat.cards asks. It schedules every word with FSRS, and the two directions — recognising the word and producing it — separately. Answers are typed, and the check shows exactly what was off.

Which words are worth a card

Not every word in a lesson needs one. Add the words you hesitated over, the ones you got wrong, and the ones you want to be able to say rather than only recognise. Skip the ones that already feel easy: the course will bring them back anyway. A noun goes in with its article when your deck uses articles, and a verb with the forms your deck asks for, so each review practises the word the way the lesson used it.

Words from outside the course

The words that matter most are often not in any lesson. On Android, a floating bubble sits over any other app — a video, a book, a chat. Tap it, mark the words on the screen, and they wait in an inbox with their translation until you move them into your deck. On the web you add them by typing, the same way as after a lesson.

Keeping it small enough to keep up

Every word you add comes back for reviews, so a steady trickle beats a big weekly batch. Set a daily limit for new words and one for reviews, and check the forecast to see how many cards are coming in the next weeks. In a free Android app, you can have reminders on the days and hours you choose. The pricing page says what the AI costs and what stays free.