PlatformIO - Next-generation IDE for IoT
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
Circuito.io - Instant code and wiring for your project
PiPer - A DIY Minecraft computer to build gadgets
Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica