I purchased this app for my then two year old. He has been playing it for a year and still loves it just as much as he did the very first time he used it. He loves it so much he has even decided to teach his 16 month old brother how to play. The updates are frequent and amazing. And the ability to take a picture of the monster you created is so cute. Best purchase to date!
Paisley peacock about Elmo's Monster Maker, v4.1