As a logo I really like 4.1 and 4.2. But I'm not sure they sit well specifically within the iPhone home screen. 2.2 is your best choice for that specific use ca

As a logo I really like 4.1 and 4.2. But I'm not sure they sit well specifically within the iPhone home screen. 2.2 is your best choice for that specific use case. Perhaps a blend of the two?