If you have a feature request or want to report a problem with an application, please first make sure you are running the latest version of both the app and iOS/macOS.
If that doesn’t resolve your issue, please contact me using the Send Feedback button you’ll find in the app itself. This will attach some additional information to your message, so I won’t have to ask you for it later.
Alternatively, you can email me. If you do, please remember to tell me what device you’re using, and what app you’re talking about :)