Reviews » Software » Reference and Education

Survive, thrive through, or escape the holiday season with these essential apps.

Yoga STRETCH

Posted 12/15/2008 at 3:00am | by Carol Pinchefsky

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Yoga now requires no formal help--just an iPhone and good medical insurance.

Knot Time

Posted 12/10/2008 at 2:04am | by Kevin Kelly

No need to get bent out of shape when trying to tie knots.

Zagat To Go '09

Posted 12/09/2008 at 2:30am | by Zack Stern

Not sure where to eat, drink, or be merry? Zagat points you in the right direction if you know its lingo.

Charting the Best Graphing Calculators

Posted 11/27/2008 at 2:30am | by Florence Ion

Forgot your Texas Instruments TI-83+ the day of a trigonometry exam? Forget about it. Now you can have an iPhone software calculator nestled safely between Pac-Man and Facebook. We checked out four of the App Store’s best graphing calculators to see how well they helped us solve our problems--our math problems at least.

WikiMe

Posted 11/21/2008 at 2:56am | by Rick Broida

A clever, location-aware Wikipedia viewer should make your next vacation a lot more... educational.

i41CX+ RPN Calculator with Printer

Posted 11/14/2008 at 4:08pm | by Florence Ion

The i41CX+ RPN Calculator with Printer looks and functions just like the graphing calculators that are standard in high school classrooms today, such as the TI-83+ or HP-41C. The interface captures the nostalgia of learning to use a scientific calculator, but only after you take some time to figure out how this app actually works.

Graphing Calculator

Posted 11/14/2008 at 3:46pm | by Florence Ion

If graphing functionality is all you need, then this free app is worth the download. The graphing calculator plots and traces several equations at a time, supports a plethora of essential equations functions, and can email an image of the graph. The X and Y coordinates are displayed at the top, while pinching the screen zooms in and out of the graph, enabling you to take a closer look at the coordinates.

Grafly

Posted 11/14/2008 at 3:30pm | by Florence Ion

Grafly is a sensationally vibrant way to graph your equation. This app displays your equation in 2D or 3D with full shading, lighting, and distinction between the inside and the outside of the shape. The 3D graphs are touch-based, tilt-based, and gravity-based; pinch to zoom in and out, calibrate “down” for tilt mode, or, in gravity mode, spin the axis anyway you like by moving your device to get a full, 360 degree view.

Calculator AXL - Graphing Calculator

Posted 11/14/2008 at 3:13pm | by Florence Ion

This graphing calculator application has an easy to use interface with its sizeable buttons, customizable background colors, and clear grid lines. However, it can be overwhelming at first, since there’s no tutorial or built-in help available.