This app IS buggy. If you edit reminders it messes it up and can cause them to be deleted and the next reminder to be wrong. It was truly deleted, not on another day. This dev is rude, refuses to admit that anything could be wrong with their app (because all apps are perfect, right?) yet also refuses to give me a refund when I just paid for it about a week ago. There are other apps that work better, I recommend trying them instead.