This week in children's apps, we feature an app from Moonbot Studios, founded by picture book artist William Joyce, and another app approved by the folks at the Smithsonian.

Title: IMAG-N-O-TRON: Numberlys Edition

Publisher: Moonbot Studios LA, LLC

Release Date: March 27, 2014

Price: $0.99

Background: Read The Numberlys picture book with the augmented reality IMAG•N•O•TRON app.

Features: Point your device’s camera at the pages of the book to discover letters, numbers and toys, assemble letters and numbers to learn their shapes and sounds, count up to 20 in a fun numbers game.

Title: Mosasaurus: Mighty Ruler of the Sea - Smithsonian’s Prehistoric Pals

Publisher: Oceanhouse Media

Release Date: May 28, 2014

Price: $1.99

Background: Dive inside the prehistoric sea and follow the story of the enormous Mosasaurus.

Features: Highlighted narration, tappable words and pictures, record your own narration.