Not as good as Numbers
My four-year-old is enthralled with Numbers, but isnt very interested in this app. In particular, the recording game needs a lot of work. All the instructions are written instead of spoken - do you expect the user of "Intro to Letters" to be able to read written instructions for sound recording and playback controls? Even after explaining them to her, theyre quite difficult to use correctly.
Stick with the number game until this one gets some more polish.
Doubter about
Montessorium: Intro to Letters