Marcus Roskosch has developed a rig control app for the iPhone. It enables full control of the ICOM IC-705, IC-7610, IC-9700, and the IC-R8600. Sadly it does not support the IC-7300 who's computer interface is restricted to USB. I have SDR-Control which I can use with My Mac Studio but thanks to the USB interface it does not work nearly as well as the Ethernet connection the above listed radios have.
roskosch.de

SDR-Control for Icom - HAM Radio Apps
Enhance your Icom radio experience with SDR-Control, the ultimate app for IC-705, IC-7610, and IC-9700. Operate in FT8, RTTY, CW, and more with integrated tools and a built-in logbook.
