RE: Parking reminder anyone?
Never ever ever ever ever ever ever ever depend on any app to do anything important.
I know of so many experiences where apps do not work at the critical time.
A specifically EV One from 2 week's ago, an inconsistent app was driving one person around the bend with the timed pre-heating on his EV meaning coming out to a frozen vehicle and having to use precious energy before leaving, much better setting the heating in the car.
The same applies to a reminder, use your phone with a named alarm as it is completely under your control.