Free app "Unlock your Brain" on Android normally $9.97
For those who download applications on their phone will agree with me that an application that costs $9.97 is quite expensive. Take advantage of an app called "App of the Day" which allows you to download a paid app all for free for 24 hours. To permanently keep the app, register with email or Facebook. The app today is called "Unlock your Brain" which is an app that asks you questions ranging from a math puzzle, trivia questions or simply create your own. You can challenge and play against your friends to see who gets the highest score. Challenge yourself with these fun challenging questions.