Android · APK

Downloads

Install the apps directly on your Android device. Every file below is the current release; its SHA-256 is computed from the file itself.

• App v1.0.1 · 2026-07-14

  Calculator Vault

  Privacy-focused calculator with a secret vault. Hide files behind a calculator interface.

  Download APK 7.0 MBDetails about Calculator Vault
  SHA-256 4ab8d1668c6ad538…fc5f27c1 Copy SHA-256 of Calculator Vault
• App v1.4.1 · 2026-07-14

  Quiz Master

  Interactive quiz platform with multiple categories, scoring, and progress tracking.

  Download APK 7.0 MBDetails about Quiz Master
  SHA-256 437f71f59cbd477f…762742c3 Copy SHA-256 of Quiz Master

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Calculator Quiz

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How updates work

1. Install the APK

   Download the file and install it on your Android device.

2. Verify the file

   Compare the APK's SHA-256 with the value on its card using a hash checker app.

3. Open the app

   It checks for updates automatically.

4. Update when ready

   When a new version ships, a banner offers the new APK.