Detect and block spam phone calls with third-party apps

Set up a third-party app on your iOS device to help you detect and block spam phone calls.

Before you begin

Go to the App Store and download an app that detects and blocks spam phone calls. You can download and install multiple apps with this feature from different app developers.

Set up an app to filter and detect spam calls

  1. Go to Settings > Phone.
  2. Tap Call Blocking & Identification.
  3. Under Allow These Apps To Block Calls And Provide Caller ID, turn the app on or off. You can also reorder the apps based on priority. Just tap Edit and then drag the apps in the order you want them.

Phone numbers that appear under Blocked Contacts are numbers that you manually block.

When you receive a call, your device checks the caller’s number and compares it to the list of phone numbers in your third-party spam apps. If there's a match, iOS displays the identifying label chosen by the app, for example Spam or Telemarketing. If the app determines that a phone number is spam, it may choose to block the phone call automatically. Incoming calls are never sent to third-party developers.

If you determine that a number is from a spam caller, you can block the number manually on your device. Phone numbers that you manually block appear under Blocked Contacts.

If you no longer want to use the app, you can remove it.

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