YouTube Kids - YouTube for the youngins on iOS and Android
Tinitell - Wearable mobile phone for kids. GPS enabled.
Tankee - The first gaming network for kids 🎮🧒
Joon - A fun habit building app for kids
Cookie Monster Quest - A King's Quest-style adventure game, starring Cookie Monster
Octopus by Joy - 1st icon-based watch that teaches kids good habits and time