Opening WattRoom…
A free Zwift alternative
WattRoom is for crews who want to train together: a standing space with text and voice channels, structured ERG workouts ridden in sync with every trainer on its own FTP, and games decided by watts. No subscription, no install, no world to steer.
Side by side
We make WattRoom, so read this knowing that. Every claim about the others links to where we checked it, in September 2026.
| WattRoom | Zwift | TrainerRoad | MyWhoosh | |
|---|---|---|---|---|
| Price | Free | US$19.99 a month or US$199.99 a year | US$21.99 a month or US$209.99 a year, for every rider | Free |
| Runs on | Chrome or Edge on Windows, macOS and Android, or the desktop app. No trainer control on iPhone or iPad | Windows, macOS, iOS, Android and Apple TV apps | Windows, macOS, iOS and Android apps; group workouts on Windows and macOS | Windows, macOS, iOS and Android apps |
| One workout, together | Anyone in the voice channel starts any workout; every trainer holds its own rider’s FTP | Group workouts scale to each rider’s FTP; a private one goes through a Meetup, and club events offer preset workouts | Group workouts for up to 11 riders, each on their own FTP, with voice and video | Group rides and pacer-led group workouts in its virtual world |
| Talking while you ride | Voice and camera built in, one tap | Text chat; crews bring Discord for voice | Voice and video in group workouts | Text chat |
| Virtual world | None: tiles, numbers and the interval chart | A 3D world with routes, drafting and racing | None: a workout chart | A 3D world with routes, races and prize events |
| Open source | Yes (AGPL), and self-hostable | No | No | No |
Compare
You want to race: Zwift’s event calendar and racing scene have no equal.
Read the comparison
Compare
You want a coach in the app: adaptive training plans and analysis are what TrainerRoad is built for.
Read the comparison
Compare
You want a free 3D world with routes and races.
Read the comparison
Zwift, TrainerRoad and MyWhoosh are trademarks of their owners. WattRoom is not affiliated with any of them.
Yes. No subscription, no trial, no paid tier. It is open source under the AGPL, and anyone can run their own server.
Yes: import your .zwo files (and .erg files from other apps) into the workout editor. Every target is a percentage of FTP, so they ride the same.
Not the way Zwift has it: there is no world, no drafting and no public race calendar. There are seven game modes decided by watts alone — sprints, eliminations, Watt Golf — played inside your own crew.
If it speaks Bluetooth FTMS, which most current smart trainers do, and you use Chrome or Edge on a laptop, desktop or Android phone — or the desktop app.
Not on the same trainer at the same time: one app controls it. But plenty of crews ride Zwift on race night and WattRoom on workout night.
Start a crew, send its six-character code, and ride your first workout together tonight. Free, no install.