Flashcards that work offline, sync everywhere and adapt to your memory

Sort of - it shares the memory science, but is intentionally simpler. Anki is enormously configurable and extensible, and it works brilliantly once you know how it all fits together. This app is built to be friendlier if you just want to study.

What you also get is collaboration. Decks are live and shared, so a study group or a class can build one deck together rather than emailing new versions around.

Yes - export an .apkg from Anki and import it here. Both the legacy and the current compressed formats work. Due dates and card states come across, and so does your review history, which matters: it's what the scheduler learns your memory from, so you don't restart from zero.

Anki's Basic, Basic (and reversed card) and Cloze notetypes land on our three card types — single sided, double sided and fill-the-blank. Other multi-template notetypes come in as single sided. Images and audio come too.

Any deck exports back to .apkg, carrying schedules and review history the same way the import does. You can open the result in Anki and keep going. Nothing you build here is trapped here.

That's the normal case, not a fallback. Everything you need to review is already stored on the device before you leave, media included, so the app starts and runs with the connection off entirely.

Reviews and edits you make offline are queued locally and pushed the next time you have signal. Flight mode for six hours is fine.

FSRS‑6 — a model that estimates the difficulty, stability and current retrievability of every card and schedules the next review for the moment you're about to forget it. That's a genuine forgetting-curve model, not the fixed interval multipliers older apps use.

Once you've built up enough reviews, the parameters are retrained automatically on your own review log, and refreshed again as that log grows, so the schedule reflects how you remember. You set the study load (target recall) anywhere from 80% to 98%: aim higher for fewer lapses and more reviews per day, lower for a lighter load.

You invite someone by email and give them either editing or view-only access. Editors work on the same deck you do — several people can edit at once, and changes merge card by card rather than one person's copy winning.

Study progress is never shared. Your due dates, streaks and statistics are yours alone, even on a deck a hundred other people are studying.

Not to study. Open the app and build decks on one device with no sign-up at all — they're stored locally and stay there.

An account only buys you the two things that need a server: syncing across several devices, and sharing decks with other people.