Lumen - Flashcards App icon

Lumen - Flashcards App

MTS Studio
⬇ 10+ downloads
Est. actual: 28
Free
Released: Jul 30, 2026
No in-app purchases
No ads

Signals

3 this week · 2 positive All of this week's signals →
  • 📈Last 7 days +4 installs — 0% faster than the week before (+4) · 0/day since Oct 9
  • 🏆Among Education apps bottom 48% by installs gained this week (1503 peers growing)
  • 🛠Updates quiet · updated 103 days ago
Installs since launch
0 14 28 28 Jul 30, 2026 today
+8 installs since Oct 9
Update history
1.0.0 Jul 30, 2026 · seen Oct 24, 2026
First release.<br><br>Lumen studies your flashcards with FSRS-6 scheduling and keeps them on your phone. Import decks from Anki, CSV, TSV, or Markdown, or start from the built-in HSK Chinese vocabulary. Chinese cards show tone-colored pinyin and read aloud.<br><br>Track streaks, retention, and daily accuracy from the stats screen. Everything works offline, with no account.
Only the current version so far — new entries appear as the app ships updates.

Lumen - Flashcards App is an education app by MTS Studio with 10+ downloads (about 28 estimated). +4 installs in the last 7 days. Released Jul 30, 2026. Install growth, rank history, SDKs and ad networks.

From the store listing: “FSRS-6 spaced repetition. Works offline, imports your Anki decks.”