Structured ERG workouts
Run step and ramp workouts over Bluetooth FTMS with automatic target updates.
Bluetooth FTMS ERG control
VOLT
A focused smart trainer controller for structured workouts, free ride ERG targets, connection recovery, and on-the-fly intensity changes.
Latest dev build: 0.1.5-dev · build 1782062830
Workout
connected
Target
245
W
Actual
238
W
Time
18:42
workout
Why VOLT
Everything needed for focused indoor training
Live intensity control
Adjust the whole workout from 20% to 200% without editing the plan.
Safer sessions
Pause, resume, safe stop, reconnect on drop, and recover unfinished workouts.
Free ride mode
Set manual ERG targets for warmups, testing, and simple trainer control.
Get VOLT
Download Android and Windows builds
Install on a real Android device with Bluetooth LE support, or run the dedicated Windows desktop app with the same trainer control, workouts, and recovery flow.
Android
Download Dev APK
VOLT for Android
APK for Bluetooth LE smart trainer control on real Android devices.
Windows
Download Windows Dev
VOLT for Windows
Desktop build with the same workout flow, free ride, and session recovery.