iPod Touch apps

Imagine taking Ivy League courses without stepping foot inside a classroom or paying a dime. Thanks to the iTunes U app, you can access thousands of free classes from universities and schools around the globe right on your iPad, iPhone or iPod Touch.

Get all your medical information on the go with the free mPHR app for iPhone. The program gives you instant access to mobile personal health records, including test results, medical history, medications, allergies and immunizations.

Instantly send free voice messages to friends and family with the HeyTell app without using your minutes.

Business on the move-instantly accept credit cards with the Square app for iPhone.

Save interesting articles on your computer and read them later on your iPhone, even if you don't have Internet access.

A free travel app for iPhone lets you locate Wi-Fi in more than 465,000 locations in 140 countries worldwide.

Apps for iPhone and Android provide definitions for more than 150,000 military acronyms and abbreviations.

The Brain Wave app uses soothing sounds and binaural tones to stimulate the mind and increase sleep, relaxation, focus and concentration-mental health benefits for soldiers under stress.

An app created by the wife of a U.S. Marine provides handy tools to help military spouses cope with deployment stress.

Military personnel serving overseas can record a bedtime story and send it to their children for free thanks to an iPhone app called A Story Before Bed. The program offers 100,000 free recordings to help troops connect with loved ones back home.