Dashometer records GPS telemetry data.
As a user, you are in complete control of when telemetry is recorded.
The telemetry data is only stored on your iPhone, and never leaves your iPhone without explicit user action.
An internet connection is required to download map data, in order to view your location on a map. Standard iOS APIs are used, and these require your current location.
An internet connection is required to download weather data, in order to display the current temperature at your location. The OpenWeatherMap API is used, and this requires your current location.