I loved how easy this app was for my older elementary students to use! The first time I used it with a 4th Grader, I showed him the first bubble, then he did the rest himself.
I have used this app along with EET, changing the background of the bubbles to coordinate with the colors of the beads.
Some of my students described a stocking, then a Christmas Tree. We put the 2 together and discussed how the 2 objects are alike/different, making the lines around the boxes coordinate with the EET beads.