Oct 05, · This tiny tutorial will help you to install third party apps on Mac OS X which is not allowed by default by Apple Inc. It will take just 10 seconds to enable third party app installation. best third party apps free download - DMK Party, Party Dress, Disco Party Light, and many more programs. Download now [ Direct download link (Windows)] How To Enable Third Party Apps In Mac OS High Sierra will not let you down and do what this program was made to do. All features are included and described in slicelive.com file after download and installation. When doing so, it is important to keep safety and security in mind. Four rules will help you stay safe when downloading apps: Don't get an app unless you really need it, get it from the Mac App Store if you can, only get an app if you trust it, and only download from the app's official site. Nov 11, · Apple Footer. This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the.