About
Tidecards is a flashcard app that schedules each card for the moment you’re about to forget it.
Memory fades in a fairly predictable way. A review just before something slips away makes it last much longer than one the day after you learned it. Tidecards keeps track of that for every card you study, using the FSRS algorithm, so your daily reviews are the cards most worth your time.
The built-in decks were written for adults who want to know things they never quite learned at school or have since forgotten. If you find a mistake in one, please email [email protected].
Privacy policy: what Tidecards collects, and how to export or delete it.
Terms of use: the rules for using Tidecards.
Data and software credits
- State maps are drawn from us-atlas (ISC License), which is derived from the US Census Bureau’s cartographic boundary files (public domain).
- US state flags come from Wikimedia Commons, where they are in the public domain.
- World maps are drawn from world-atlas (ISC License), which is derived from Natural Earth (public domain).
- World flags are from flag-icons by Panayiotis Lipiridis, MIT License.
- ts-fsrs for scheduling reviews, MIT License.
- Built with SvelteKit, Drizzle, Better Auth and other open-source software under the MIT, Apache 2.0, BSD and ISC licences.