iOS texture size

Hello. I have 2 questions.
Whats the maximum texture size i can use for IOS?
Whats the maximum amount of texture i can use per material for IOS?

Im coming from unreal it was 2048x2048 back there.

4096 for iPhone 4S and newer, 2048 for older (iPad 2 support is for 4K unless running an old version of iOS (5.0 I think)).

While Unity supports 8k textures, it does not appear that iOS supports this on any devices yet (though it’s controlled with the driver so it may change later).