You don’t need extra apps or technical know-how to fight scam calls, as your smartphone already has features designed to stop them.
If you own an Android, you can use Google Assistant to screen calls automatically. Similarly, iPhone users can try Apple's Call Screening feature. Our tech expert Tom Morgan talks you through how to do this, step by step – and he has tips for landlines, too.
If you'd benefit from 1-to-1 help with your smartphone or other tech products, you can join Which? Tech Support and chat to our friendly experts on the phone or by email, as often as you need. Find out more about what a membership offers and get a £20 Richer Sounds gift card if you join by 2 February.
Source: Which? (22 Jan 2026)