This is the pro version of the app with same name.

It is a compendium of thousand upon thousand of fun and interesting facts gathered in 8 different categories, like History, Phobias, Weird Laws, Geography etc. This is one of the biggest fun facts apps and it's absolutely free!

The Book of Knowledge:

- words 100% offline
- it does not contain any ads
- it does not require any permission
- has more than 7.000 fun facts
- it quite light - under 2 GB
- it comes in 3 different languages (English, German and Romanian)
- it goes directly to the SD card
- is fun, intriguing and easy to navigate
- all the facts were taken from specialized books