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Fitness Tracker

Open source fitness tracker

Luigi311 ✓ Verified

com.luigi311.fitness-tracker
View on Flathub ↗

An open-source application for tracking sensor data from Bluetooth Low Energy (BLE) devices in real time, recording sessions, visualizing your workout history and uploading to intervals.icu.

Screenshots

Tracker View
Tracker View
Running indoor freerun
Running indoor freerun
Running indoor workout
Running indoor workout
Cycling trainer workout
Cycling trainer workout
History activies
History activies
History comparison
History comparison

Observed history

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Upstream releases

Release notes supplied by the developer. These dates are not Flathub package publication times.

5.1.130 Aug 2026

Improvements

  • Add detailed diagnostics for Intervals.icu workout fetching
  • Skip live chart redraws while the tracker page is hidden

Bug Fixes

  • Fix Intervals.icu workout fetching by sending date-only calendar ranges
5.1.025 Aug 2026

Improvements

  • Wait for a fresh, accuracy-appropriate indoor or trainer location anchor, with more time for GPS cold starts
  • Combine GPS starting elevation with sensor-derived elevation changes for indoor and trainer TCX exports

Bug Fixes

  • Prevent outdoor elevation spikes by exporting altitude only when a GPS measurement exists
  • Treat unknown GeoClue altitude values as missing instead of exporting invalid elevations
5.0.020 Aug 2026

Features

  • Record GPS routes through the desktop location portal
  • Export and upload location-aware TCX activities
  • Filter activity history to find failed uploads
  • Require holding the stop button to prevent accidentally ending a workout

Improvements

  • Refresh live metrics more frequently
  • Use a more compact layout
  • Send workout change notifications only while the app is in the background
  • Launch and Close the Pebble companion app automatically with active sessions
  • Compress Intervals.icu activity uploads

Bug Fixes

  • Recover and reconcile failed Intervals.icu uploads across response variants
  • Improve Pebble bridge restart and shutdown reliability
4.1.07 Aug 2026

Features

  • Support distance-based and mixed time-and-distance workout steps
  • Show distance remaining and time-and-distance workout summaries
  • Notify when a distance-based workout is waiting for a sensor

Bug Fixes

  • Keep workout progress and targets accurate across step navigation, pauses, and sensor reconnects