Circuito.io - Instant code and wiring for your project
Eduflow - Digital learning that actually teaches students something
B4R - Development tool for native Arduino programs.
Flowlingo - Get fluent in a language through content immersion
embedXcode - embedXcode is a template for Xcode.
Backchannel Chat - Backchannel Chat is best in class discussion tool that is intended for teachers to streamline their class activities.