ShiftCam “ProGrip” DSLR-Style iPhone Shutter Grip + Wireless Power Bank
Adds a comfortable and ergonomic photo-shooting grip to your iPhone 13, 12, or 11 — along with some extra battery power for those longer shooting sessions.
Just Mobile “ShutterGrip 2” Smartphone Camera Grip with Remote Shutter and More
Adds a camera-style grip to just about any iOS or Android phone, along with an Inspector Gadget-like number of 'hidden' features.
Pictar — A Camera Grip for iPhone [Kickstarter]
A clever gadget that aims to combine the iPhone's photographic capabilities with the physical controls and features of a standalone camera.