All 205 countries of the world, in about 10 minutes a day. Pick what you want to know, set your pace, and let spaced repetition do the remembering.
Free during early access — and it stays free for you after that.
Choose any mix. Capitals are asked both ways round: the capital of France, and which country Paris is the capital of.
Pick your pace. From 5 new cards a day (about 6 minutes) to 40 (about 44). Change it whenever you like.
Study a few minutes a day. Each card comes back just before you'd forget it — often at first, then days, weeks and months apart.
Actually remember it. The scheduling is FSRS, the same algorithm modern Anki uses, tuned to keep you at 90% recall.