iOS Shader looks like flat

Hello, I'm having trouble with shader in iOS.

Below are two clothes using the shader from o3n! UMA race (o3n Double Sided Shader). The first one is flat in iOS, the second one is really weird looking. At editor does not have transparency (but this is not a problem at this point).




My application run in OSX/iOS/Android/Windows, just the iOS is different. Could some one help me to solve or understand better this problem?

Or recommend a shader for iOS ( I already tried the standards shader and none works well )