Practice English Grammar helps you learn English grammar with the principle “Practice makes perfect”.

Practice English Grammar contains many pages of grammar lessons explaining the grammar topics of the tests. With over 1500 questions in 17 topics, this app helps you practicing the basic usage of English grammar in elementary level.

Learn English, Spanish, French and Italian

The Ultimate Hacking Reference!

This application details various different hacking methods, exploits, software attacks and more! If you ever wanted to know what a SQL injection is, what social engineering is, or simply already know most of the material and just want a handy reference, with How-To's, cheatsheets, quick references and more, THIS IS THE APP FOR YOU!

Our review from DroidTweak:

"The Best Hacking Reference Available! For Beginners and Experts alike! 5/5 Stars!"