Looking to stand out further from the crowd of kids tablet competitors, Amazon is adding a raft of new content, including books, apps and videos, to its FreeTime Unlimited subscription service.

For US$2.99 per month, kids can access content via Amazon’s Android tablets, while parents can block access to social media sites and in-app purchases. According to Amazon, thousands of titles are currently being added to the service.

Newly licensed content includes apps like Disney’s Princess Story Theater (pictured) Frozen Freefall, Teenage Mutant Ninja Turtles Roof Top Run and Dora’s Great Big World from Nick, Sesame Street’s Monster at the End of This Book and Toca Boca’s Toca Cars and Toca Hair Salon Me. More than 400 apps and games are now available through the service.

For movies and TV shows, new additions include Nickelodeon’s iCarly, Avatar and The Legend of Korra, Daniel Tiger’s Neighborhood (The Fred Rogers Company/Out of the Blue/9 Story Media Group), Dinosaur Train (The Jim Henson Company) and Sesame Workshop’s Sesame Street.

Capstone’s The Wizard of Oz and more than 100 Oceanhouse Media titles like Dr. Seuss’s How the Grinch Stole Christmas! and Cat in the Hat, have been added to push the FreeTime library to over 4,000 titles.

FreeTime and FreeTime Unlimited are available exclusively on Amazon’s Fire tablets, Amazon Fire TV and Kindle eReaders. The new content should bolster Amazon’s new kids tablet, released earlier this year.