[JimDabell]

That's not correct, there are two options, always on, and no access. Uber still works fine if you refuse to grant access to your location, you just have to put your location in manually. If you've already granted permission, you can revoke it by going to Settings > Uber > Location. Apple aren't going to kick Uber out of the App Store if it works fine when you don't grant permission.

[bpicolo]

Ah, gotcha. I didn't realize it would function at all with no access.

Still, only on when app is on would be the best choice.