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 your app from enabling it is that it might slightly increase your 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.
It's fundamentally your choice whether you'd like to share your information with them or not, the option is deactivated by default until you change this.