Cargo-Bot is a free Ipad app, it is a great example of an app that was completely developed on an Ipad. Cargo-Bot promotes STEM concepts and is really fun and interactive for children. This is an introduction to coding app and would be best suited for the younger year levels. Cargo-Bot is a puzzle game that helps children better understand programming.
This app links to the curriculum:
Identify, use and explore digital systems (hardware and software components) for a purpose (ACTDIK001)
Follow, describe and represent a sequence of steps and decisions (algorithms) needed to solve simple problems (ACTDIP004)
Find the app here:
https://itunes.apple.com/us/app/cargo-bot/id519690804?mt=8&ign-mpt=uo%3D8