Terrible unstable app

Usually I rate on quality of a working app, but I would think that after almost 2 years they could rewrite this app to actually consistently work. Rarely does it restore purchases correctly and then when it finally shows the issues available for download the button doesnt work or it turns gray and indicates a spinning progress circle but never does anything. I have reinstalled 3 times. I have followed their FAQ for troubleshooting. Ive emailed customer service in the past and it takes days to get a response. Just dont understand how they havent ditched the app and rewritten it from the ground up. So frustrating.

StudentPilotJournal about FLYING Magazine