This week in children's apps features an app for learning all about the songs of frogs, a challenging jigsaw puzzle for different age levels, and one that ushers in the new season.

Title: Noisy Frog Sing-Along

Publisher: Dawn Publications

Release Date: Sept 30, 2013

Price: $2.99

Background: The Noisy Frog Game challenges you to learn frog sounds and match their sound waves with the correct species.

Features: Scientifically accurate extreme close-up artwork, choose between “Read to Me” and “Read to Myself,” hear actual recorded frog and toad sounds, includes extra information about each featured species.

Title: Roxie's Puzzle Adventure

Publisher: OCG Studios

Release Date: Oct 7, 2013

Price: $2.99

Background: The illustrations of Roxie Munro playable as a jigsaw puzzle. The gigantic maze from the "Roxie's a-MAZE-ing Vacation Adventure" game app is divided into 16 different puzzles. Each puzzle can be played with various difficulty levels.

Features: Play up to 260 pieces on the iPad and 130 on the iPhone (children can start with as few as 6 pieces), up to 5 different players can play different puzzles, progress is stored.

Title: The Fall Festival -- Little Critter

Publisher: Oceanhouse Media

Release Date: Oct 9, 2013

Price: $0.99

Background: Join Little Critter and his family in this interactive book app on their road trip to the Fall Festival. While apple picking or going on hayrides, explore pictures, learn new vocabulary, and personalize the story with your own narration.

Features: Highlighted narration, record your own voice, select-a-scene.