Best Call Blocker Apps in 2026

YouMail

YouMail combines robocall protection, privacy tools, and visual voicemail for Android, iOS, and the web.

NumBuster

NumBuster identifies unknown callers and helps protect against phone fraud, spam, and unwanted messages.

Hiya Spam Blocker

Hiya Spam Blocker is a mobile app for Android and iOS that identifies unknown callers and screens or blocks unwanted spam, telemarketing, and robocalls.

T-Mobile Scam Shield

T-Mobile Scam Shield helps protect customers on T-Mobile’s network from scam calls, spam texts and harmful websites.

Should I Answer?

Should I Answer? is a community-based service and mobile app for identifying and protecting against unwanted calls, telemarketing, and expensive outgoing calls.

RealCall

RealCall is a mobile app for caller ID and blocking spam and scam calls, available on Android and iOS.

PhoneBlock

PhoneBlock helps users block advertising and spam calls using a shared database of reported numbers.

Who Called

Who Called filters unwanted calls using an official telemarketer prefix list and community reports.

CallApp

Callfilter.app

Callfilter.app is a free, open-source Android app that rejects incoming calls according to rules you choose.

Truecaller

Truecaller identifies incoming calls and messages and helps users detect and block spam.

Call Insider

Call Insider is a free service for identifying unknown phone numbers and sharing reports about callers.

Call Assistant AI

Call Assistant AI is a call management app for handling incoming calls and reducing spam and robocalls.

Verizon Content Transfer

Verizon Content Transfer moves personal data from an old device to a new one, including contacts, photos, videos, calendars, call logs, and audio.

Call Control

Call Control blocks unwanted calls and text messages, including robocalls and telemarketing.

Robocall Blocker

Nomorobo

Corta Spam

Corta Spam is a free, open-source Android app that screens incoming calls against rules before the phone rings.

SpamBlocker

SpamBlocker is a free Android app for screening unwanted calls and SMS while leaving the phone’s default call and messaging apps in place.

CallWall

CallWall is a free iOS app that uses a community-powered database to block spam calls and filter spam texts.

HangUp

HangUp is a free standalone Android app from NordVPN that checks unknown calls in real time and screens incoming texts for threats.

DeepPurge

DeepPurge is a free Windows uninstaller and cleanup toolkit for reviewing installed software, tracing leftovers, and keeping track of recovery options before changes.