AstraMentisA daily serving of things worth knowing, at your level.
One feed, one gesture. A chess puzzle, a Japanese sentence, a fraction, a short story, a painting from a museum, a poem. Each card comes at your level and moves with your answers.
Sign in
AstraMentis is by invitation: ask a friend who uses it for a link. Their challenge links open without an account.
How it works
- Levels, not streaks. Every skill has a rating that starts at 1,200 and moves with each answer; cards are picked so you get about three in four right.
- Ladders. Skills open when the one before is mastered and close when you outgrow them, so the feed always has something to teach.
- Readings between exercises. Stories in the public domain, paintings released by museums, poems. They never count against anything.
- Works offline and keeps to itself. The phone keeps the next cards; no trackers, no ads, no AI keys; your data exports and deletes in one tap.
Nine areas
- Readings
- Music
- Swedish
- English
- Japanese
- French
- Programming
- Chess
- Maths
- Astronomy
- Geography
- Chemistry
- Biology
Free up to a daily serving
Twenty exercises a day are free, and readings never count. To keep going, become a patron: from 2 € a month, whatever you choose, cancel whenever. Patrons get no extra features; they just keep going, and add their own cards without limit.
Open source
The code is published under the AGPL-3.0 licence and the original content under CC BY-SA 4.0. You can read it, run it yourself, and improve it.