About

A quieter way to remember

Calm design, local-first data, plain files, and open source.

Miyu is a spaced repetition app built around a simple preference: calm over compulsive. No streak guilt, no confetti, no red badge counting the cards you did not do. A short queue, a clear next date, and a screen quiet enough to think on.

The design borrows from Japanese stationery rather than from productivity software: washi paper, sumi ink, a single vermilion accent, and hairline rules. Shippori Mincho for headings, Zen Kaku Gothic New for text. The interface is deliberately light, and there is no dark mode to switch into.

Underneath, Miyu is local-first. Your collection is one folder on your device: notes as Markdown files, decks and courses as small JSON files, review history in monthly shards. You can open it with any text editor, copy it to another machine, and restore a verified backup if something goes wrong. Sync exists, but it is optional and it merges rather than overwrites.

The same web build runs in a browser, inside the desktop app, and in the iOS and Android shells, so a review looks and behaves the same wherever you open it. The catalog that ships with the app includes language courses and subjects well beyond them, from music theory to field biology.

The app is open source under AGPL-3.0-or-later. The code, the course catalog, and the design tokens live in one repository on GitLab, and the sync server can be read as well as run.

Miyu is free to use without an account. Miyu Sync is the optional paid part: $4.99/month after a 14-day trial, with 10 GB of storage for people who want their collection on several devices.

Questions, corrections, or a course you would like to see? Write to support@miyu.avizi.co.