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
Observed history
| App | Change | Version | When ↑ |
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No observed changes yet.
The initial import establishes a baseline. Future version changes will appear here.
Browse the app catalogue →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





