Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
YouTube Kids - YouTube for the youngins on iOS and Android
PlatformIO - Next-generation IDE for IoT
Hopster TV - Netflix for kids
B4R - Development tool for native Arduino programs.
KidsBeeTV - Safe Cartoon App for children. Watch popular kids shows Polly Pocket & Pinkfong; Lingokids learning videos & fun cartoons such Om Nom.