This is a very high quality app, and is the best one Ive seen thus far that combines early letter recognition and formation with the Montessori methodology. It avoids cheezy animation that other apps resort to. Im using this app to reinforce concepts for my kindergardener, and to prepare my 4 year old for a preK Montessori classroom. Both love it! Note that the recording feature is difficult for them to use independently. Would love to see higher level Montessori apps to progress with...maybe some word ladders?
iKnewIt! about Montessorium: Intro to Letters