Android

Kartavera on your phone

The atlas, the daily round and the leaderboard as an app: full screen, on your home screen, with reminders that arrive as notifications. It is the same Kartavera, so your sign-in and your streak come along.

Test build
Version 1.0.0

0.5 MB · Android 7.0 or newer · published 6 September 2026

Download APK

This is the build we are testing before the Play Store listing. Installing a newer build over it keeps your data; the Play Store version will replace it later on.

What's new

First test build: the atlas, the daily round with leaderboard, sign-in, reminders.

On a computer?

Point your phone's camera at the code to open this page there.

How to install

  1. Download the APK. Chrome may say the file "might be harmful" because it did not come from the Play Store. Choose Download anyway.
  2. Open the downloaded file. The first time, Android asks you to allow installs from Chrome: Settings → Allow from this source, then go back.
  3. Install and open Kartavera. The first launch shows a one-time "Running in Chrome" note; after that the app opens full screen every time.

What you get

  • The Equal Earth atlas with search, zoom and drag-to-compare, made for one hand.
  • The daily round with the live leaderboard, and a reminder at the hour you choose.
  • Sign in with Google to keep your streak across your phone and your computer.
  • Links to kartavera.com open in the app once it is installed.

Good to know

  • The app needs Chrome (or another modern browser) on the phone; it renders the site inside it, without browser controls.
  • No permissions beyond the internet and, if you turn reminders on, notifications.
  • Same privacy terms as the site: read them here.
  • Verify the file: SHA-256 18431a06 a213a677 15e4f9aa 68425cc1 70a4113d 4619d0f5 021ea3a3 ef3af8c3

Something not working? Write to hello@kartavera.com with your phone model and Android version.