Why do I have two Ubertesters icons on my iOS device?
Once the Ubertesters hub installation is complete on your iOS device, you can notice the two Ubertesters icons – the white icon and the black one.
The white icon ico-white-uber is the Ubertesters hub itself, that is used for the OTA distribution of your builds.
The black icon ico-black-uber is just a bookmark to the Ubertesters app installation web page. You can delete it when the hub is installed already, as it will not be required further.