Hi, developer here
Hi guys, ok this is something I've not seen whilst testing it on the few physical devices I have and in the emulator. I'm not sure what's happening here but obviously I'm keen to help if I can.
The app has two main parts, the full screen display and a windowed view that is shown in front of other apps, the latter runs as a service. Both parts have settings in the manifest to enable them to be launched from icons and two icons are created when the app is installed. Whenever I've uninstalled the app both icons have been removed from the app drawer. My devices are mostly but not all rooted.
Feedback has been mixed about whether two icons are needed; some people don't want the window icon and ask how it can be removed, others like it so they can call it with other apps like AutomateIt. Because the majority of feedback was against it I've removed it from the paid version of the app...but now there are requests to have it again. Hopefully my solution will be to be able to install a shortcut if required.
Sorry, back to your problem! I'm surprised TIBU doesn't remove it if I'm honest, although the Android uninstall should remove it all. There's nothing unusual or malicious in the code (i'm really not that clever!) to prevent it uninstalling.
If a link to a particular version of the .apk helps let me know and I'll post it if I can.
I'll do some more testing and see what I can find and post anything useful here.
Sorry for the hassle.