Tribe of Mentors - Short life advice from the best in the world, by Tim Ferriss
Code-Free Startup - Learn how to build real apps without coding
MentorCruise - Personalized mentorship experiences
Swift Playgrounds - Learn serious code on your iPad in a seriously fun way
Frontend Mentor - Supercharge your front-end skills by building in a real-life workflow. Solve real-world HTML, CSS and JavaScript challenges whilst working to professional quality designs.
SwiftHub - GitHub iOS client in RxSwift and MVVM-C clean architecture