My 7, 6 and 5 year old all use this app and love it. Although a bit of a breeze for my seven year old, it does help reinforce what she already knows, allowing her the confidence to move forward and even teach her younger siblings. I love that there is a variety of images for both boys and girls instead of just blocks. I also had a problem with the sound in the beginning... I emailed in with my problem, had a response with in 15 minutes! Problem solved! I would recommend this app to any parent of a young child, and Id give the app 10 stars if I could!
canyoupixelthis about Montessori Numbers for Kids