Rappel shows each card again just before you would forget it, so a few minutes a day are enough to remember what you learn. After each card you only say whether you knew it: Fail or Pass.
Cards are written in Markdown, with formulas, images and sound. Everything stays on your computer: Rappel never goes online and needs no account.
- Two answers only, scheduled by FSRS, a modern model of memory
- Formulas drawn as in LaTeX
- Pictures and sound on cards
- Search, tags and statistics
- Automatic backups, and export to a single file
- Import from Anki, with your review history
- Works on phones and with the keyboard alone