If you download the new app (not this one), BlackVue have a cloud feature and whether you use that feature or not, you are required to share your location to BlackVue AND other users. Otherwise, the app quits.
The legacy app (this one) does not require that, but since you they no longer support the legacy app, you are forced to use the new one for future updates AND share your location.
lanwarrior about BlackVue Legacy, v1.525