Scratch Jr is a tablet version of scratch.
It's not as full featured as scratch but it runs nicely on iOS and now Android tablets.
And it's fully language agnostic. All icon driven and the instructions is in the form of an example video. That means it's also great for pre-readers.
Your not going to create a custom game with it, but it's great at creating animated stories and interactive stories that you can share with your friends. So it is empowering in teaching kids to create their own content rather than just consuming and playing games. That's a welcome option for tablets which are so geared to consuming.
Also parents note it's easy enough to just install and let them go at it on their own without guidance, so go for it install it on your tablet and just leave it there and see what happen.