Libra

An Android app for the Runtastic Libra smart scale, whose official app was discontinued by Adidas/Runtastic.

Features

• Sync history — download all measurements stored on the scale
• New measurement — step on the scale and save the result
• Live weight — view real-time weight without saving
• Measurement history — browse, copy, and delete past measurements
• Charts — visualise weight, body fat, muscle, and bone mass over time (7 days to all-time)
• Import / Export — backup and restore data as JSON or CSV; import from files shared via any app (Telegram, email, etc.)
• Manual entry — add measurements without the scale
• User profile — configure height, weight, date of birth, gender, and activity level used by the scale to calculate body composition
• Unit support — kg and lb
• Language — English and Italian

Requirements

• Android 10 (API 29) or higher
• Bluetooth Low Energy
• A Runtastic Libra smart scale

Building

JAVA_HOME=/path/to/jdk21 ./gradlew assembleDebug

APK output: app/build/outputs/apk/debug/app-debug.apk

Tech stack

• Kotlin, Jetpack Compose, Room, DataStore
• BLE via Android GATT API

License

This project is licensed under the GNU General Public License v3.0.

This project is not affiliated with or endorsed by Adidas or Runtastic.