OpenGL ES 2.0 supports iPad Version, iPhone 3GS or higher and iPod Touch 3rd generation and higher.
As far as iOS version is concerned, ES 2.0 support has been added to iOS 3.x and higher, but only Devices that support it.
Unfortunately, Apple’s documentation here does not provide details. Anyone knows which iOS device and which version of iOS supports which version of Open GL ES?
All iDevices can run OpenGL ES 1.0.
OpenGL ES 2.0 supports iPad version, iPhone 3GS or higher and iPod Touch version 3rd generation and higher.
As far as the iOS version is concerned, ES 2.0 support has been added to iOS 3.x and higher, but only for devices that support it.