In a move to remain unique in the competitive tablet market, Amazon is introducing Kindle FreeTime Unlimited in the US, a new content service for kids ages three to eight that offers a wide range of ad-free TV shows, eBooks, games, educational apps, and movies.

Available in the coming weeks as a free automatic software update for Kindle Fire and Kindle Fire HD tablets, the unlimited service for Amazon Prime members costs US$2.99 per month per child or US$6.99 per month for a family. Non-Prime members will have to pay US$4.99 per child or US$9.99 per family.

Kids will be able to access age-appropriate content from the likes of Disney, Nickelodeon, Houghton Mifflin Harcourt, PBS, Andrews McMeel Publishing, Chronicle Books, DC Comics, HIT Entertainment and Sesame Workshop.

As an extension of Amazon’s Kindle FreeTime service, which provides parental controls that limit how much time kids spend using content, the new unlimited service will block kids from making payments within apps, and will prevent access to social media and the internet.

Content is also automatically sorted by kids’ ages and gender, and shows up with titles already approved by parents.