As soon as you get your new iPhone, one of the first things you're likely going to do is start installing your favorite apps. After all, you need those email and messaging apps for work, calorie ...

Yuka, Transit, MyNoise, Listonic, and Merlin Bird ID are five of the most overlooked free apps that are actually worth installing on Android or iOS.

An app, short for "application," is a piece of software developed primarily for use on a phone, tablet, or other mobile, wireless device. If you use an iPhone or iPad, you are using an app every time ...