Snap This looks so much like Scratch, you'd think that MIT had created it…..
This works on a laptop or an iPad through Safari. Projects seem to be stored
within the browser. You can store files in the cloud with an email address
No age restrictions.
It's a little slower than I'd like on the iPad, but my network isn't so great during this initial testing.
Hopscotch 4+, made for ages 9-11. Lots like Scratch.
Daisy The Dinosaur (made by the folks at Hopscotch)
Kodable Basic version is free, $6.99 for full version. This supports multiple iPad users.