Company Montessorium, LLC created these great apps:
Montessorium: Intro to Math, Montessorium: Intro to Letters, Montessorium: Intro to Words, Montessorium: Intro to Colors, Montessorium: Intro to Cursive, Montessorium: Intro to US, Montessorium: Intro to Geo, Guidepost Parent, and others..
