Can you tell me if the Kolor Eyes iOS app is optimized for the iPhone's Retina display? I've tried creating high resolution, 4K 360º videos to playback on my iPhone 6 with retina display, but there are lots of jaggies. It doesn't come across very clean. It looks to me like the player isn't playing back in a retina resolution.
I've taken the same exact video and it plays back very cleaning on both the Samsung S5 phone using the Kolor mobile player and the desktop player using Oculus Rift.