Your collection, organized.
Nest decks in folders, see what's due at a glance, then filter your cards by state, type, tags, or properties like audio and images.
Or on a timer. Or when you open your timewaster app of choice. Spaced repetition that meets you where you already are — on Android, on-device, yours forever.
FSRS-v5 · Image occlusion · Anki .apkg import · Local-first
Opening Instagram for the fifth time today? Answer a card first. Twenty minutes deep in TikTok? A few more, on a timer you set. You decide which apps, and how often.
A speed bump, not a wall: the app opens the moment you answer. Each trigger keeps its own Do Not Disturb, call, and media rules.
Nest decks in folders, see what's due at a glance, then filter your cards by state, type, tags, or properties like audio and images.
Draw masks over anatomy, maps, diagrams, or screenshots — no add-on. Imports cleanly from Anki's image-occlusion notetypes too.
The same algorithm the modern Anki ecosystem moved to. Desired retention from 70 % to 97 %, with individual scheduling for every cloze blank, occlusion mask, and card direction.
Etch reads your .apkg files and keeps your FSRS
scheduling and progress intact. Anything it can't translate
— stripped audio, unresolved images, cloze rewrites —
is flagged with a count, never dropped silently.
No account. No cloud sync. No analytics, no Firebase, no ads. The only data that leaves your device is what you send yourself — an export, an import, or a feedback message you confirmed.
Anonymous crash reporting is off by default — one toggle in Settings → Privacy turns it on. Read the full privacy policy →
One-time. Lifetime.
$0
$14.99 once
$29.99 once
Everything you buy is yours forever. No subscriptions for what's in the app today.
I'll email once, when v1 hits the Play Store. No newsletter. No marketing.
Get notified at launch