FAQ

Can the app work offline?

Yes, it can. The databases Kaspersky Who Calls uses are stored on your device, so you can find out who is hiding behind an unknown number even if there is no Internet connection.

An Internet connection is used to:

• Update phone databases on your device;
• Check unknown phone numbers using the online spam databases, which are constantly updated;
• Purchase a subscription to use the Premium version of the app.

What databases does Kaspersky Who Calls use?

Kaspersky Who Calls uses three types of databases:

• Online databases of phone numbers that have been reported by users as spam
• Online databases of organizations' phone numbers
• Local list of phone numbers added by you in the app

The app checks phone numbers using databases. You must turn on database use in the iPhone settings. Activation of the databases may take up to several minutes.

Due to issues with the iOS operating system, numbers you have added to the lists in the app will not be deleted from your device right away if you uninstall the app.

Spam labels are based on community feedback only and can't be considered a verdict provided by Kaspersky.

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Incoming calls are not identified and a loading image is shown near the Kaspersky Who Calls icon

Regardless of this issue, Kaspersky Who Calls will still provide information about phone numbers when checking an unknown number inside the app.

Solution:

1. Remove Kaspersky Who Calls from the device and reinstall it.
2. Before running the app for the first time:

   On devices with iOS 18:

   • Go to Settings > Apps > Phone > Call blocking and Identification and turn OFF the switch for Kaspersky Who Calls.

   On devices with iOS 17 or earlier:

   • Go to Settings > Phone> Call blocking and Identification and turn OFF the switch for Kaspersky Who Calls.
3. Launch Kaspersky Who Calls and follow the instructions of the First Run Wizard.
4. Wait about 5-10 minutes after the databases are updated.

We do not recommend you to force-stop the app. Interrupting a detached process can cause unstable operation of the app.

After the app is installed and updated, the device takes up a lot of time to update the "Call blocking and identification" settings

Due to some iOS operation issues, the settings update may take several minutes or – in rare cases – even hours.

Solution: if the Who Calls switch is not displayed in the device settings or if the switch goes back to OFF when turned on, give the app some time and come back later. If nothing changes, try restarting the device.

In the device settings, when trying to turn the Who Calls switch to ON, an error message appears

Solution: download the latest iOS system updates. If all updates are already downloaded, restart the device and wait a little while before trying again.

It takes the app a lot of time to update information about phone numbers

The reason for this issue is that it takes time for the operating system to process new data when the databases have been updated or when you add a new number to the spam list.

Solution: depending on the device model and some background processes, the data update may take from 1 to 10 minutes. Only after that will the operating system be able to use the new information and, for instance, block calls from a new spammer.

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