I have 1 of them too, but there's nothing to worry about.
Yes, they should be iOS harmless apps, automatically managed by operating system, that should correspond to "web clips" (when you save your websites from Safari on your iPhone, to get speedy access to your favorite URLs by saving them as web clips icons on the home screen).
I've no further details at the moment, but if I get more info, I'll keep you informed.
Regards
Giulio