By Chris Morris

PHILADELPHIA (CBS) – On today’s APP-tastic and outta SITE, Yellow Submarine.

The Beatles may have taken their time to join the digital world, but they’re catching up fast.

Yellow Submarine is technically an iBook, rather than an app – but it’s probably not what you think. In addition to telling a story based on the 1968 film, it comes with 14 clips, original dialogue and a slew of interactive features. Even better, it’s free!

Check out the YellowSubmarine app.

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