Difference between lite and full version?

I downloaded VV2 Lite for iPhone a few days ago, what's the difference between lite and full versions? I just want to know if it's worth buying the full version, thanks!
If the full version is better, then is it possible to get the full version (iPhone) for free? I'm not old enough to have a credit card yet

The full version allows you to have a larger tribe. Credit cards aren't the only way to get paid apps on the App Store. You can use iTunes gift cards on the App Store, too, if anybody has given you one of those.

You could also wait to see if Arthur has another "free day" for the games as he did before Christmas last year.

Ok I will try to get myself an iTunes gift card

Sorry, I have another question: Will I lose my game data if I upgrade to the full version? I already completed most of the puzzles in the game and I don't want to start over.

We would love to have been able to make the saved game data from the free version of VV2 available to the full version for people who started with the free version. Unfortunately, for security reasons, the iOS operating system restricts applications to storing data only in their own directory in an area that is not accessible to users or other applications.

This makes sharing or transferring data impossible between the free and full versions of the game. When you purchase the full version, you will need to start a new game; however, you will be able to continue playing the free version on your device, if you wish to continue that game.

Ok thanks