Polariton

ANDROID · ARM64 · ANDROID 8 OR NEWER

Install Polariton

Polariton isn’t on Google Play, so you install the APK yourself. It takes about two minutes.

Step by step

  1. Sign in and download. Open polariton.app/account on your phone, sign in, and tap Download for Android. Every signed-in account can download, including expired trials.
  2. Open the file. When the download finishes, tap the notification, or open Files → Downloads and tap polariton-…-arm64.apk.
  3. Allow your browser to install apps. The first time, Android shows “For your security, your phone is not allowed to install unknown apps from this source.” Tap Settings, turn on Allow from this source, then press back.
    • Samsung: Settings → Install unknown apps → your browser (e.g. Chrome) → Allow.
    • Xiaomi / Redmi / POCO: Settings → Privacy protection → Special permissions → Install unknown apps. If MIUI/HyperOS starts a countdown, wait for it and tap Continue.
  4. Tap Install.
  5. If Google Play Protect warns you, it shows “Blocked by Play Protect”, “Unsafe app blocked” or “App not trusted / unrecognised developer”. Tap More details (or the small arrow ⌄), then Install anyway. If it offers Scan app, you can scan first; the scan may finish without a verdict, and you can still install.

    Don’t tap OK or Don’t install. They close the dialog without installing.

  6. Open Polariton and sign in with the same email or Google account you used on the website. Your trial or license appears automatically. The first launch unpacks the built-in Linux workspace; a progress bar shows Downloading and then Installing.

Why does Android say the app isn’t trusted?

Play Protect is Google’s scanner for apps that come from Google Play. Polariton is distributed directly from polariton.app instead of the Play Store. Google has never reviewed this file, so it can’t vouch for it, and new apps that few people have installed are flagged by default. The warning means “unknown to Google”. It doesn’t mean malware was found.

Polariton stays off Google Play because the app runs a full Linux workspace on your phone (terminal, package managers, build tools). Play policy doesn’t allow downloading and running that kind of code.

Every Polariton release is signed with the same Polariton key, and Android refuses updates signed by anyone else. To check that your copy is genuine, compare its signing certificate’s SHA-256 fingerprint with:
6b5f0a923c7d47d189bc6119bb46a83267d91a513c53a49af65d0f95e398f4a2

Only download Polariton from polariton.app. Never install a copy someone sends you.

Trouble?

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