Delayed root request
I was using the app and wanted to use native root detection, but it always said "Installation failed". When I closed the app to do other things on my phone, suddenly with an about 1 minute delay the root request popped up (using SuperSU). After I granted the app root access, the installation succeeded.
This is just a minor issue, but imo still worth mentioning.
I've kind of noticed that too, but I don't think that's something that RootCloak has any control over.
The implementation is most likely the cause. If you are a new user and the app is not working because the su request doesn't show up, one might go ahead and simply uninstall the app.
I may find time to work out a better solution and make a pull request...