Support.

Most problems are one iOS setting.

I parked and it didn't yell.

In iOS Settings → DFYFK, set Location to Always, turn on Motion & Fitness, and allow Notifications.

I got the banner but no sound.

Turn your ringer on. On silent you still get the banner and a buzz.

I'm a passenger, or on a bus.

Pause it from Home for 1 hour or until 6 AM.

How do I restore my purchases?

Store tab → Restore Purchases, with the same Apple ID.

How do I get a refund?

How do I delete my data?

Delete the app. If you turned on iCloud backup, also delete its data in iOS Settings → [your name] → iCloud → Manage Storage.