# iOS Notes

These are some general notes on Cinder's implementation on iOS.

## Targeting

Cinder targets iOS version 8.0 and later. This is governed by the iOS Deployment Target build setting in both Cinder itself and the application (which must be matched).

## Development Requirements

Cinder requires Xcode version 7.1 or later. Cinder targets the `armv7` and `arm64` architectures.

## Additional Notes

- By default, Cinder on iOS targets OpenGL ES 3. In order to use OpenGL ES 2, you must add the `CINDER_GL_ES_2` preprocessor definition to the Preprocessor Macros build setting of both your app and Cinder, and you must rebuild Cinder.