Around 50% in the US. The real issue is that Apple has control over its devices after sale. That it decides what they can and cannot run based on its own arbit

Around 50% in the US. The real issue is that Apple has control over its devices after sale. That it decides what they can and cannot run based on its own arbitrary rules that no one can challenge. That it can literally put other companies out of business by denying them the privilege of having an iOS app.