Activating Mapbox tracking is an option available in the profile settings.
Mapbox is a third-party tool that we use to render maps in the iOS and Android apps. Enabling Mapbox tracking will share your data, anonymised, with them, when it comes to your usage patterns. We, as komoot, have no access to or information about the specific data tracked. The only potential impact on the app from enabling it is that it might slightly increase data usage. Mapbox uses this data to improve their software which would eventually improve komoot. You can check out exactly what they track and how they use it on the Mapbox website.
The option is deactivated by default until you change this.