Saetta

Install

1. Download the file

   Your browser may warn that it's uncommon. It's an unlisted build, not from the Play Store — that warning is expected.
2. Open it, allow this source once

   Android asks permission to install apps from your browser. Allow it for this one install — you can switch it back after.
3. Open Saetta

   You'll be asked to accept a short beta notice on first launch. After that, you're training.