Here’s how it works in the US, not sure about UK.
Most car insurance companies have an optional monitoring system. If you opt in, you’ll be given a device to place in your car. This device sends data about your driving habits and location data to the insurance company. The company’s algorithm rates how safely you’re driving and gives you a discount based on that.
Yeah, that is an issue. I just like its features and UI the most.
If you want a good comparision of the apps you can go to the open street maps wiki