Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.

Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Appcues for Product Adoption - Make your product easier to use. Code-free.

Eduflow - Digital learning that actually teaches students something

User Onboarding - Onboarding teardowns of popular sites/services

Kialo - Kialo is the platform for rational debate. Empowering reason through friendly and open discussions.