Hybrid mobile apps are like any other apps you’ll find on your phone. They install on your device. You can find them in app stores. With them, you can play games, engage your friends through social media, take photos, track your health and much more.
The key difference is that hybrid apps are hosted inside a native application that utilizes a mobile platform’s WebView. This enables them to access device capabilities such as the accelerometer, camera, contacts, and more.
The main advantage is that you “write one and run everywhere” (already heared?)