Etch is a full spaced-repetition flashcard app for Android — FSRS-v5 scheduling, image occlusion, deep Anki import — that also slips a due card in front of you throughout your day, if you like. I'm picking a small, varied group of testers; tell me about you and I'll be in touch!
Etch is made by one person, and testers genuinely help shape it. I can only take on a small group — if you're one of them, Pro version is my thank-you, yours to keep.
The one you use for the Google Play Store (usually a @gmail.com). That's how Google Play enrolls you as a tester.
You can find that information under Settings - About Phone
