As our address books become more advanced and we become more and more inundated with information, it can become difficult to keep up with all the people we need to interact with on a regular basis. NextCall augments your address book by letting you rank important contacts, set alerts for when you need to call them, and sort your contacts into business and personal categories.

The app will keep track of how long it has been since you last called a certain contact, so you can keep track of who you've been neglecting. The app has a clean, ICS-themed interface, and is completely free, including free of ads. Whether you're trying to keep up with a long list of clients, or just need to remember to call your second-cousin once removed, this app is a must-have.