ItsaprilXD has written another fantastically easy guide on how to install Mods in your game in OS X. And she has very kindly given me permission to post it here on my website. So if you need help installing Mods in The Sims 4, and you’re on a Mac, head over to this page for instructions:

itsaprilXD’s How to install Mods on a Mac Guide – The Sims 4