Review is a to-do list that schedules revision based on the principle of spaced repetition. Reviews are rescheduled once completed based on their difficulty.
Spaced repetition is based on the ideas of Hermann Ebbinghaus, who created the "forgetting curve".
By popular request - you can now purchase Premium with a one-time payment instead of a subscription. Keep your data safe forever and support the app!
Removed analytics - if you have issues with the app, drop me an email! No point collecting your data.