HRM Fan&Led 4+

An app for RHM Fan/Led device

Lukasz Sacha

Designed for iPhone

    • Free

iPhone Screenshots


A new app for your HRM Fan / HRM Led device

This app replaces the "HRM Fan" app, since it also works with our new device in the family - HRM Led.

If your HRM Fan device is model 4.2.0 or later, you can download this app and it will upgrade your device to enable new functions.
If you don't have our device yet, you can buy one on

The list of functions include:
- Manual fan / RGB LEDs control with presets
- Automatic fan / RGB LED control by heart rate
- Heart rate based workout stages (warmup, workout, cooldown)
- Fan speed exponentiality setting
- Heart rate zone based control for RGB LEDs
- Automatic Fan / RGB LED control by bicycle speed sensor
- Automatic RGB LED control by bicycle power sensor
- Bicycle power zones based control for RGB LEDs
- Zwift zones / colors presets to better visualise power zones while riding on Zwift
- Remote firmware udpdates in your HRM Fan / HRM Led
- Sensor configuration
- Simple / advanced mode
- Kmh or mph setting
- Sleep timer configuration ... and more

For a full list of features please see the manual available at

New device firmware included in this app allows our HRM Fan device to work worldwide, with all current/voltage standards in the World.

To be updated on all the changes and plans regarding our products, please like and track our Facebook and Instagram profiles:

What’s New

Version 2.0.17

Small visual changes

App Privacy

The developer, Lukasz Sacha, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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