7Boom Free app for iPhone and iPad

------ What is it ------
7Boom (or 7 Boom) is a game that puts to the test logic, mathematical and concentration skills.
It is an ideal pastime for challenging friends and a great exercise to train the mind.

------ How to play ------
The goal is to reach the number 61 within two minutes.

On the screen there are two button ("Next" and "BOOM!") and a number that starts from 1.
You have to press the button "BOOM!" every time that the displayed number:
- contains the number 7
- is a multiple of 7
- is composed by digits that summed or subtracted are equal to 7
In all other cases "Next" is the right answer.

But beware!! If you select the wrong button, the counter is halved.

There are three levels: beginner, expert and genius.
Depending on the selected level, the number to reach is higher.

------ Version ------
This is the free version of the game, it is possible to play with number 7.
With the full version it is possible to play with all number from 3 to 9.

Any comment or advice is welcome :)

Good Luck!


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