The ultimate fan control for indoor training.

Control up to four fans based on heart rate or body temperature.

Designed for indoor cycling, running, rowing, or any other activity where you want to use a fan (or several!) based on your heart rate or body temperature.

Compatible with Bluetooth-enabled heart rate monitors such as the Wahoo TICKR, Garmin Dual, Polar H10/H11, CORE body temperature sensor, Wahoo HEADWIND fan, and up to three additional fans using compatible smart plugs.

Can be used as a companion app with any training platform, such as TrainerRoad, Rouvy, Zwift and others.

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Control a single variable-speed fan

Range slider control provides easy, quick adjustment

Control up to 3 smart plug fans

Each fan has it's own configuration thresholds for triggering fans on/off

Body temperature

A body temperature sensor can display core body temperature and also be used to trigger fans (optional)

Ambient Room Temperature/Humidity

Display room temperature and humidity with a compatible sensor (optional)

Stay comfortable, so you can focus on your workout.

Overheating while training indoors can lead to a less-than-ideal workout - whether it's fewer intervals or just not being comfortable or constantly manually fumbling with fans. Fan IO is particularly well-suited for interval training. (Side note: we created this app because of the *need* for it while using TrainerRoad for training plans/indoor workouts!).

On the flip side, we can also train with heat, as the Trek-Segafredo Pro cycling team have written about using the CORE Sensor for real-time body temperature measurement. Body temperature can also be used to trigger any of the smart plug configured fans in Fan IO


Get the app now!

Apple App Store