Quote:
Molten is a suite of graphics development frameworks that give you the power to transform your graphics applications and games on iOS and OS X platforms. Whether you want to move to the next-generation Vulkan API on iOS and OS X, or simply want to run your OpenGL ES 2.0 application or game faster on iOS or OS X, Molten has a graphics framework that will help you get what you want!
https://moltengl.com/
Because Apple is never free:
MetalGL for OpenGL ES 2.0 Price: $149.00
MetalGL for OpenGL ES 2.0 + Extensions — 25-user Pack Price: $4,481.00