You know those Irwin quick clamps that are very popular, blue and yellow quick release clamps. I have a bunch of them and they're fine.
I also have a bunch of "craftright" clamps. Same thing, but the clamping force feels so much higher, the Irwin clamps are what I use if I've run out of my cheap knockoff clamps
It definitely is a good choice for some people, I wouldn't give my mother in law an Android device.
But the iphone as a platform is inferior because it can do less (although Android is definitely headed in a similar direction)