Flashio - Create flashcards from text input to anki, xlsx and csv.
dateDropper Javascript - The lightest and the most complete javascript date picker
SmartCards+ - Spaced Repetition Software for iOS. Modern, powerful and easy to use.
JavaScript Quiz - Check your knowledge by having fun.
Quizify - Introducing Quizify!
WhiteHat Jr - WhiteHat Jr is a live online coding class service that is aimed at kids who want to learn coding in an easy and practical way.