Developer:  Crossroad solutions
Price: $0.99
Version reviewed 1.6.5

iPhone Integration Rating: 4 stars
User Interface Rating: 5 stars
Re-use/Replay Value Rating: 5 stars
Overall Rating: 4.5 stars

One thing I love about my iPhone is how there are so many educational apps on the appstore, so I decided to review a program called Units.  Units is a unit converter that acts like a calculator.  It has a number pad like a calculator, but it has 4 buttons along the top: mode, from, to, and setting.  There are even three user-swappable buttons on the side for your favorite conversions.  The picture below explains what I’m saying.

The interface is really simple and looks fantastic, but it takes about 5 minutes to get used to.  It feels like an aluminum Casio calculator, nice brushed aluminum and nice plastic keys.  One thing that the company should add though is a landscape (sideways) mode, giving you more user-swappable buttons, currencies, and extra features directly on the screen.

Overall, Units is a pretty awesome app.  Costing only 99 cents, Units is a must have for students. Period.

Check out the developers website at: crossroad solutions – iPhone – Units