Just looked it up, that Apple license is indeed approved as open source/free software by the FSF and OSI!
> FSF approved Yes (Version 2.0, not versions 1.0, 1.1 and 1.2)[2][3]
> OSI approved Yes
* https://en.wikipedia.org/wiki/Apple_Public_Source_License
alt Hacker News
> FSF approved Yes (Version 2.0, not versions 1.0, 1.1 and 1.2)[2][3]
> OSI approved Yes
* https://en.wikipedia.org/wiki/Apple_Public_Source_License