LifterLMS is described as 'The easiest money saving way to create your online training platform and community. LifterLMS is the most powerful online course, membership site, LMS option available today'. There are four alternatives to LifterLMS for a variety of platforms, including Online / Web-based, Self-Hosted solutions, Wordpress, SaaS and iPad. The best alternative is Teachable, which is free. Other great apps like LifterLMS are Tutor LMS (Freemium, Open Source), LearnDash (Paid) and Graphy (Paid).
Tutor LMS is a robust WordPress LMS plugin. Create courses on a frontend course builder, test learners with multiple quizzes, award certificates with a rich certificate builder, and do much more. Best for instructors, marketplaces, institutions, etc.