Everything seemed fine until...
I have purchased the 12-months Stickies Plus version two weeks ago, and everything seemed to be working fine at first. I had even written a very positive review! But now I am running into issues with the app (in short, the stickies don't synchronize between my devices anymore, and the Plus Version only appear on one of my devices, even when restarting or desinstalling-reinstalling the app.), and I can't find how to contact the developper of the app. When you click on "App support", you're sent on the developper's X(Twitter) profile and can't contact him unless you have a premium X account. If he sees this message, I would appreciate that he provides an email address so he can be contacted.