Here is another filmmaking cage that lets you capture photos and video with your smartphone like a pro. The SmallRig Pro Mobile Cage for iPhone (CPA2471) fits your phone like a glove and lets you attach all kinds of accessories. It has two cold shoes and multiple 1/4″-20 threaded holes.
This cage comes with a thumb screw on one side for quick mounting. It has a hollow-out design to reduce chance of interference. This iPhone 11 Pro cage has a lanyard hole too.