Who do I contact if I've got problems with the app?

1. First up, check the Facebook page. I'll try (as best I can) to sort out problems with the app, when I come across them.
2. Next, email me: celestial_doom@derpymail.org - This (sometimes) works. It may be a couple of days before I get around to replying, mainly because I don't work on my apps 24/7 (I do have a real-world™ job)
3. Check to see if there's already been an update for the app. Sometimes I'll come across a problem and fix it before it becomes an issue.