iPhone is a nice piece of hardware, but the OS has lots of room for improvement.

1. Better robocall blocking
2. Call screening similar to visual voicemail
3. Better voice assistant
4. Wait for me on hold feature that listens for a person
5. Visual phone trees so you don’t have to listen to phone tree systems on customer service calls.
6. RCS for better cross platform communication
7. A better notification system with built in interaction systems.
8. Better app icon movement experience and the ability to put app icons anywhere.
9. Default map app choice similar to browser and email
10. Universal back gesture that works everywhere consistently