VR CONTROLLER FOR IOS

Hey guys!

Currently I am exploring the VR world and I have an iPhone 6s.
Unfortunately, I couldn't find any good content on the App Store..
Lately, I came across the following video:
https://redd.it/51lb9b
Do you think it could be a good solution for iOS?
Do you think that it would be an useful device for those who develop VR content for iPhone?
Thanks!