Beat Time

Beat Time is a small Android app that displays the current Swatch Internet Time in the app and in a silent, persistent notification.

This app was vibecoded in a day for personal use using ChatGPT 5.6 Sol Max.

Features

• Three notification precision levels:
  • Whole beats, such as @583, updated every 86.4 seconds
  • Tenths, such as @583.4, updated every 8.64 seconds
  • Hundredths, such as @583.42, updated every 864 milliseconds
• Battery-efficient whole beats are the default
• Restarts the notification after reboot when enabled
• Light and dark themes
• No network permission, ads, analytics, or third-party runtime libraries
• Supports Android 8.0 (API 26) and newer

Automatic GitHub build

Every push and pull request is tested and compiled by GitHub Actions. Successful builds on main publish a versioned APK under Releases. The release contains one universal, debug-signed APK for personal testing.

Build locally

Install JDK 17 and Android SDK Platform 35. Android Studio can install the SDK from Tools > SDK Manager.

If Gradle cannot find the Android SDK, create local.properties in the project root. On Windows it normally contains:

sdk.dir=C\:\\Users\\YOUR_NAME\\AppData\\Local\\Android\\Sdk

Build from PowerShell:

.\gradlew.bat test assembleDebug

Or from macOS/Linux:

./gradlew test assembleDebug

The APK is written to app/build/outputs/apk/debug/app-debug.apk.

Use

Choose the desired notification precision and enable Persistent notification. Android 13 and newer will request notification permission.

License

Licensed under the GNU General Public License v3.0 only. See LICENSE.