iOS 32 Bit Display Buffer Checkbox not in play settings + iOS lighting looking different to Mac

I've been using unity alongside Vuforia to create a simple AR app. Using multiple directional lights i've achieved a look I like and want to use. But when I Build & Run my app onto my Ipad Air, it ends up looking completely different than what is displayed on my mac. I've tried forcing the ios quality settings to fantastic, changing the texture compression quality and nothing has worked to match it to how I see it displayed on my mac.

Forcing the highest quality level for iOS -...

iOS 32 Bit Display Buffer Checkbox not in play settings + iOS lighting looking different to Mac