Get Metal performance with OpenGL ES, and triple your draw calls, without changing a single line of your OpenGL ES game code or shaders. MoltenGL is an implementation of the OpenGL ES API that runs on Apple's Metal graphics framework. With MoltenGL, you get many of the performance benefits of the Metal framework, while maintaining compliance with the proven OpenGL ES API.
On the left, an OpenGL ES 2.0 application maxed-out at 2,200 sprites at 60 frames-per-second on an iPhone 6+. On the right, the same OpenGL ES 2.0 application, on the same device, able to draw 6,600 sprites at 60 frames-per-second using MetalGL.