Draw.Chat - Anonymous real-time whiteboard with text and video chat.
Flowkey - The easiest way to learn piano with your iPhone or iPad
MultiDraw - Draw with others in real time.
Yousician - Learn to play music at home, at your own pace
Animaker Whiteboard - A whiteboard video making tool with 10,000+ drawings 🖊
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.