Onyx by Titanium - This website provides operating system utilities for macOS
Udemy - Online Courses - Learn Anything, On Your Schedule
MacPilot - Unlock over 1200 features in Mac OS X and optimize your system!
Adobe Learning Manager - Adobe Learning Manager (formerly Adobe Captivate Prime LMS) is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!