Live Camera: World IP CCTV Webcams Online Video is a free and easy-to-use webcam application that lets you watch live cam video. The app can be downloaded for free and used for free. You don't need to subscribe to any service to use it.

Just download the app and use it to see what's happening at the places you're most interested in. 

You can watch live web cam cameras for free on your smartphone. It's not a requirement to subscribe to any service to use it. It works great on iOS, Android, and some other mobile operating systems.