Of course the app got booted off the Apple app store because Apple wants to be the ones to decide when you have analog emissions.
Next year Google will make it an unremoveable bloatware app because they want to track ALL of your analog emissions, scheduled or not.
Next month, researchers will discover that Microsoft has been tracking our analog emissions all along.
And, to come full circle, DARPA will start working on a way to remotely sniff the air in a room to determine if the occupants have been eating traditional terrorist cuisine (whatever the F that is). However, after spending billions on contracts, it will be easily obfuscated just by keeping a couple of old dogs in the room.