The iPhone already comes loaded with some built-in apps that might appeal to students--Voice Memos for recording lectures, Calendar for keeping tabs on class schedules, and the like. But peruse the aisles of the App Store, and you can find plenty of apps aimed at students, whether you're starting your senior year of high school or working on a Master's degree.

We've compiled a list of 10 apps we think are at the head of the class, but they're not the only . So feel free to add to our list with the back-to-school apps that have earned your top marks.

If you still can't summon the info you need, time for the experts. The free ( Macworld rated 4 out of 5 mice ) taps into the world's most famous search engine--all you have to do is talk to it. The app's easy-to-use voice search feature locates what you are looking for in no time. Google Mobile App also gives you one-stop access to all of Google's major players, including Gmail, Calendar and Docs--handy functions on their own.