Coding is an important STEM skill that you can introduce to children at an early age. Two of my favorites apps for doing just this are Hopscotch and Daisy the Dinosaur. Another great app to add to your list is Kodable.
Kodable introduces basic programming skills to students as it pushes them to problem solve. This colorful app is totally free and contains different levels to keep students engaged. One thing that I love about gamification of computer programing skills is how it helps this topic feel accessible to students.
Visit the Apple App Store to download!