KoKo: Learn the words of 30+ languages with spaced repetition

Hi Product Hunt! I'm Tom, the solo developer behind KoKo. I built it because every vocabulary tool I tried made me choose: either spaced repetition with cards I had to build myself (Anki), or ready-made content without real reviews. KoKo does both: pick a topic (food, travel, work, health...), learn 4 words in a couple of minutes, and the app brings each word back right before you'd forget it, from the next day to 4 months later. A few choices I made on purpose: - Vocabulary only, no grammar course - Never more than 32 reviews a day, so it never turns into a backlog - No account, no ads, works offline - 30+ languages, with Mexican Spanish and Brazilian Portuguese as their own varieties It's iPhone only for now. I'd love your feedback, especially on which language or topic you'd want next!