In this week’s round-up of apps, there is an iPad app based on a picture book that teaches kids how to read, and a classic Dr. Seuss book with a tongue-twisting narrative.

Title: How Rocket Learned to Read for iPad

Publisher/Developer: Random House Children’s Books/Domani Studios

Available: January 27

Price: $7.99, available now at the introductory price of $4.99

Background: The app is based on author-illustrator Tad Hills’s bestselling picture book that teaches kids how to read, published by Schwartz & Wade Books last year.

Interactive features: More than 40 pages of interactive text and illustrations. Readers can choose Read to Me or Read It Myself options. In one spread that displays the entire alphabet, kids can tap their way through each letter to hear it and see a corresponding illustration created by Hills for the app.

Title: Fox in Socks

Publisher/Developer: Oceanhouse Media

Available: January 18

Price: $3.99

Background: Fox in Socks is a classic Dr. Seuss read-aloud beginner book written in 1965. A tongue-twisting narrative takes readers on a wacky ride with Fox and Mr. Knox playing a game with rhymes that continue to increase in complexity.

Interactive features: Three options: Auto Play, geared toward younger readers, plays like a movie, automatically reading and turning pages; Read to Me allows users to listen to the narrated story with words highlighted as they are read; and Read It Myself lets users read the book alone in its traditional form.

To be included in this weekly listing, please send us the app title, the book or other source for the app (if there is one -- original apps are fine, too), when it was released, price, background of the book (including such info as copies in print, when it was released, awards, and brief plot summary), and the interactive elements of the app. We also need the promo codes, and an image from the app if possible. Send all apps to Jim Milliot, and send news of children’s apps to Diane Roback as well.