Today’s free iPhone app at FreeAppADay.com is Super 7, from No Monkeys.
The game is a line-drawing game that places numbered discs on the screen, and asks you to draw lines with your finger to connect these discs in groups adding up to 7. That is, you could connect discs with the numbers 6 and 1 on them to add up to seven, or you could connect discs with 4, 2, and 1 on them to achieve the same end.
The game is made more complicated by adding in multipliers, dividers, and negative numbers, along with a series of power-ups.
OpenFeint integration allows for you to earn 17 achievements, as well as being able to track your scores on the game’s online leaderboards.
As a bonus, Super 7 is a universal app, meaning that you can play it not only on your iPhone, but also on your iPad in full screen.
If you like line-drawing games, make sure to download Super 7 while it’s free today.