Open source

BullWatt

Free open-source Auuki fork for the web with an ERG target and Strava and TCX integration.

Visit bullwatt.comAdd to compare
Price
Free
Runs on
Browser
Trainer
FTMS
Last verified
Not yet verified
Pricing

Plans and what you get

  • FreeFreeWhat this plan includes isn't recorded yet · source
Riders

What riders found

Setup and pairingNot enough riders yet
Trainer controlNot enough riders yet
RoutesNot enough riders yet
WorkoutsNot enough riders yet
StabilityNot enough riders yet

Rider reports are coming soon

Spec sheet

What it does, and how we know

Cost

Free trial
Unknown
Works without an account
Unknown

Runs on

Platforms
BrowserSourced 26 Oct 2026 · source
How you install it
Unknown

Trainer and sensors

Trainer protocols
FTMSSourced 26 Oct 2026 · source
Connection types
Web BluetoothSourced 26 Oct 2026 · source
Sensors supported
Unknown
Power match between sensors
Unknown
Shares the trainer with other apps
Unknown
Trainers tested
Unknown

Riding

Ride modes
ERGSourced 26 Oct 2026 · source
Own GPX or real routes
NoSourced 26 Oct 2026 · source
Video routes
Unknown
Virtual world
Unknown
Ride with other people
NoSourced 26 Oct 2026 · source
Computer-controlled riders
Unknown
Other sports
Unknown
Games
Unknown

Workouts

Structured workouts
Unknown
Workout import formats
Unknown
Build your own workouts
Unknown
Training plans
Unknown
FTP tests
Unknown

Coach and voice

AI coach
NoSourced 26 Oct 2026 · source
How the AI coach is paid for
Unknown
What the AI coach does
Unknown
Voice input
Unknown
Spoken coaching
Unknown

Integrations and data

Connects to
StravaSourced 26 Oct 2026 · source
Export formats
Unknown
Keeps your data on your device
Unknown
Works offline
Unknown

Project

Maturity
Unknown
Has a trainer simulator
Unknown