App support
Email support@xyzmakes.com. It goes to the person who wrote the software, not to a queue.
The email opens with the details already listed — fill in what you can. A screenshot or a screen recording usually saves a round trip.
Report a bugTell us what you were trying to do. Every request is read, and the ones that keep coming back get built.
Suggest somethingPurchases made through the App Store are handled by Apple, and the studio cannot issue those refunds. Apple's request page is the fastest route.
reportaproblem.apple.comWhat each application collects is listed in the privacy policy, and no application is released without an entry there.
Privacy policyWhat happens after you send it
A person reads it — the same person who wrote the software. You will get a reply within two business days, and if the fix needs a release you will be told which one.