Scratch Junior is an iPad application. This is a coding app with drag and drop coding blocks. The link below will provide you with a video tutorial showing how young students an easily make an interactive quiz that they can get their friends to play with.
This is a highly engaging activity and can be easily integrated to support a unit of work. My students enjoyed adding voice feedback to their quizzes as well as speech bubble comments.
This Blog site also contains other great video tutorial lesson ideas for Scratch Junior.