Mobile Apps

 An iPhone running a mobile app

 
Desktop and laptop computers aren't the only devices that can run apps. You can also download apps for mobile devices like smartphones and tablet computers, which opens up a lot of new possibilities. Here are a few examples of mobile apps:

• RedLaser: You can use RedLaser to compare prices while shopping. You simply scan an item's barcode using your phone's built-in camera, and the app searches the web for the best price.
• Word Lens: Word Lens is a language translator app. Like RedLaser, it uses your phone's camera to take a picture of a sign, menu, or other text that you want to translate, and then it displays the translation for you.

 

 Foursquare: If you're going out to a restaurant, bar, or mall, you can "check in" with Foursquare to find nearby friends and also let your friends know where you are. 

 

• Foursquare can also show you a list of nearby businesses (using your phone's built-in GPS), which can help you discover places that you've never been to before.

 
Compared to traditional applications, mobile apps are relatively cheap. Many of them cost as little as 99 cents, and others are free. If your mobile device has an internet connection, you can download apps directly onto the mobile device. Otherwise, you can download them to your computer and then transfer them over.