WhosCall is an app that allows you to identify incoming calls from unknown numbers and block unwanted calls. It is available for Android and iOS devices and can be downloaded from the App Store or Google Play Store.

Some of the features of WhosCall include:

1. Call blocker: This feature allows you to block unwanted calls from specific numbers or types of numbers, such as telemarketers or spam calls.
2. Reverse lookup: This feature allows you to search for information about a specific phone number, such as the name and location of the person or business associated with the number.
3. Real-time caller ID: This feature displays the name and information of the caller in real-time as you receive a call.
4. Call recording: This feature allows you to record calls for later reference or to share with others.

Overall, WhosCall is a useful tool for managing your incoming calls and protecting your privacy. It can help you identify unknown numbers and block unwanted calls, making it easier to stay connected with the people you want to talk to.