If you have issues with using my app I am happy to help.
Please write an email to luxilux (at) christian-lobach.de and include as much information as possible, such as the app
version, screenshots and a description of what is not working.
I'm
also very interested in hearing from you if you like the app or have
feature ideas for future versions.
If you have purchased an app from the App Store, I can't refund
purchases directly.
See
this support article
on how you can request a refund from Apple.