Caller ID: Number Details is an Android app developed by AppMotto in the Social & Communication category. This app is designed to help you identify and block unwanted calls. It uses advanced call identification technology to show you who's calling you and lets you decide whether or not to answer the call. With Caller ID, you can put an end to spam calls, telemarketers, and unwanted calls from certain people.

The app has a vast database that helps you identify incoming calls, even if the number is not in your contacts. You can also create your own block list and add any number you want to block, or use pre-defined categories to block calls from entire groups of unwanted callers. Caller ID is user-friendly and intuitive, making it easy to use right away. Best of all, it's completely free to use, with no hidden fees or subscriptions.