Klemy Cycling

Just the workout, on your smart trainer

No virtual world, no avatar. Pick a workout and your trainer sets the power for every interval.

Download Klemy Cycling on the App Store
  • Zone 2 to VO2 intervals
  • ERG, slope and resistance
  • Apple Watch on its own
  • No account
Klemy Cycling holding 240 watts in a planned ride, on an open iPhone Duo The same ride’s plan on Apple Watch
Klemy Cycling running a planned ride on iPhone The same ride’s plan on Apple Watch

Which trainers work

Your trainer works if it shows up under Fitness Machines in the app’s Devices list.

Bluetooth FTMS trainers and bikes
ERG, slope and resistance, as many as the trainer reports, and the app offers only those. A bike with resistance only, such as a Domyos, gets resistance mode.
Van Rysel Turbo D100
ERG, slope and resistance, with power from the trainer. It sends no cadence, so pair a cadence sensor for that.
Power meters and cadence sensors
Use one as the source for power or cadence. On a trainer the app cannot control, Record Without Control records the ride from them.
The plan chart in Work 5 of 8: 240 watts now, 135 watts in 15 seconds, against your FTP line

Planned workouts

Zone 2 to VO2 intervals scaled to your FTP, a ramp test, or build your own. The trainer sets the power for every interval.

Power, resistance and slope shortcuts above the ERG target of 185 watts, with -5, -1, +1 and +5 steps

Full trainer control

ERG, resistance and slope modes, with shortcuts for quick changes mid-ride.

Klemy Cycling’s start screen on Apple Watch: 40/20s, a 49-minute ride, with buttons for the plan list and the trainer connection

On your wrist

Start a ride on Apple Watch alone. The Watch connects to your smart trainer itself and shows the plan, with a tap on your wrist before each change.

Live ride metrics: 182 watts, heart rate 145 in zone 3, 22.9 miles, 699 calories, cadence 78

Your numbers

Power, cadence, speed, heart rate, distance and energy, with heart rate and power zones. Every ride is saved to Apple Health.

Questions

Is it an alternative to Zwift?
For structured workouts, yes. There is no virtual world, avatar or group ride, and no account. You pick a workout and the trainer follows it.
Do I need a smart trainer?
For the app to set the power, yes: a Bluetooth FTMS trainer or bike. With only a power meter or cadence sensor, it records the ride without control.
Does my data leave my device?
Workouts go to Apple Health and the rest syncs through your own iCloud. None of it reaches us.