Mnemosyne is a free, cross‑platform spaced‑repetition program that tracks recall strength and schedules reviews with a modified SM‑2 algorithm. It supports text, images, audio, LaTeX, tagging, plugins, and exports, while also collecting anonymous data for memory research.
Website: https://mnemosyne-proj.org/
Free and open source
Modified SM‑2 algorithm for efficient review
Simple
distraction‑free interface
Detailed learning statistics
Plugin and scripting support
Cross‑platform desktop and Android sync
Mnemosyne began as an academic project exploring long‑term memory and has grown into a streamlined flashcard app. It prioritizes efficient spaced repetition over flashy UI, letting you focus on learning.
Ideal for all learners learners who want a no‑frills SRS that isn't Anki.
Download the installer or portable version from mnemosyne‑proj.org, or run `pip install mnemosyne-proj`, then launch and create your first deck. Enable the built‑in sync server if you want to review on Android.
Create categories for each topic, add cards with multimedia, and start daily reviews, rating each card 0‑5. The scheduler spaces repeats; use the browser to tag, filter, bulk edit, or cram before tests.
Schedule automatic backups and periodically vacuum the database.
No official iOS app, and mobile sync requires running the desktop server. Aging interface and fewer community plugins compared to Anki.