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Best Free Spam Blocker Apps

235+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated May 2026

With an average user rating of 4.5★, the free spam blocker category is one of the App Store's strongest. Browse all 235+ apps we track, sorted so the most loved ones surface first.

Top Picks for Free Spam Blocker

Robokiller: Spam Call Blocker#1

Robokiller: Spam Call Blocker by Mosaic S.r.l.

Stop 99% of Robocalls & Texts
Editor's Choice
🔧 Utilities
4.5😐(413K ratings)
FreeAdsIn-App Purchases
#10in Utilities
Robokiller: Spam Call Blocker screenshot 1
Robokiller: Spam Call Blocker screenshot 2
Robokiller: Spam Call Blocker screenshot 3
Robokiller: Spam Call Blocker screenshot 4
Robokiller: Spam Call Blocker screenshot 5
Robokiller: Spam Call Blocker screenshot 6

This application effectively blocks spam calls and robocalls to help users avoid unwanted interruptions, allowing for a more peaceful and uninterrupted phone experience. Take control of your calls with this powerful spam call blocker.

What We Love

  • 🚀 Blocks spam calls effectively
  • 😂 Entertaining answer bots
  • 🤫 Reduces unwanted call volume
  • 👍 Convenient call screening

Room to Improve

  • 🐛 App issues like resetting, deactivation, and call forwarding problems
  • 🚫 Blocks some legitimate calls
  • 🤖 Concerns about increased spam calls after using the app
Verizon Call Filter#2

Verizon Call Filter by Verizon Wireless

Put an end to mystery calls
Strong Contender
🔧 Utilities
4.7😐(300K ratings)
Free
Verizon Call Filter screenshot 1
Verizon Call Filter screenshot 2
Verizon Call Filter screenshot 3
Verizon Call Filter screenshot 4
Verizon Call Filter screenshot 5

An app to combat spam calls, identify and block them at different risk levels, and offers additional features like Caller ID and area code blocking. Try Verizon Call Filter for a more secure calling experience!

What We Love

  • 🚀 Blocks spam calls
  • 🔒 Helps reduce spam
  • 👍 Works well for some users
  • ⭐️ Useful tool

Room to Improve

  • 🐛 Doesn't block all spam calls
  • 🔒 Blocks legitimate calls
  • 💰 Paid version required for full functionality
T-Mobile Scam Shield#3

T-Mobile Scam Shield by MetroPCS Wireless, Inc.

Your call control center.
Worth Considering
🔧 Utilities
4.7😐(208K ratings)
Free
T-Mobile Scam Shield screenshot 1
T-Mobile Scam Shield screenshot 2
T-Mobile Scam Shield screenshot 3
T-Mobile Scam Shield screenshot 4
T-Mobile Scam Shield screenshot 5
T-Mobile Scam Shield screenshot 6

Take control of your calls with our advanced Scam Shield app. Block scam and robocalls, access Caller ID, report suspicious callers, and enjoy additional premium features like personal number blocking and reverse number lookup. Secure your phone and never fall victim to scams again.

What We Love

  • 🚀 Blocks many scam calls
  • 👍 Useful app for T-Mobile customers
  • 🔒 Helps improve phone security

Room to Improve

  • 🐛 Inconsistent blocking of known scammers
  • 🚫 Blocks some legitimate calls
  • 💰 Premium features should be free for T-Mobile customers

More Free Spam Blocker apps to explore

4
Hiya: Spam Blocker
Hiya: Spam Blocker
Hiya: Spam Blocker
Personal Call Screener
Free

Block spam calls and messages effortlessly with our cutting-edge application. Say goodbye to nuisance calls for good – download now and reclaim your peace of mind.

🔧 Utilities
(237K)
5
Phone
Phone
Phone
by Apple Distribution International
Free

Make and receive calls, FaceTime, and manage contacts all in one place with this app. Features include favorites, call transcripts, conference calling, voicemail options, and more. Stay connected seamlessly with additional features like call announcements, call forwarding, and Wi-Fi calling.

🔧 Utilities
(8.5K)
6
RealCall - Spam Call Blocker
RealCall - Spam Call Blocker
RealCall - Spam Call Blocker
Robo call blocker scam shield
Free

This app is a powerful spam call blocker for iPhone, using advanced AI to automatically filter out 99% of spam calls, robocalls, telemarketers, and scams. With over 3 million spammers blocked, it ensures you never receive unwanted calls again.

🔧 Utilities
(25K)
7
Truecaller: Premium Caller ID
Truecaller: Premium Caller ID
Truecaller: Premium Caller ID
Spam Blocker・Phone Call Filter
Free

Identify and block spam calls, search for unknown numbers, and utilize AI-powered call screening and recording features with this app. Enhance your phone call experience and safeguard your communication effortlessly. Spot annoying spam calls now!

🔧 Utilities
(251K)
8
Spam Call and Text Blocker
Spam Call and Text Blocker
Spam Call and Text Blocker
Block Scam and Filter Spammers
Free

Filter out spam texts and calls with our efficient blocker app. Say goodbye to unwanted messages and calls today!

🔧 Utilities
(48)
9
Call Protect: Robocall Blocker
Call Protect: Robocall Blocker
Call Protect: Robocall Blocker
Caller ID & Spam Call Blocker
Free

Protect yourself from spam and robocalls with our app that automatically blocks unwanted calls. Say goodbye to annoying interruptions and enjoy peace of mind. Download now to take back control of your phone!

🔧 Utilities
(31K)
10
YouMail: Block Spam on iPhone
YouMail: Block Spam on iPhone
YouMail: Block Spam on iPhone
Safer Calls, Texts & Voicemail
Free

This application helps users block unwanted phone calls and spam messages effectively. With its advanced filtering and blocking features, users can enjoy a hassle-free calling experience. Take control of your phone calls and messages today!

🔧 Utilities
(98K)
11
Mr. Number Lookup & Call Block
Mr. Number Lookup & Call Block
Mr. Number Lookup & Call Block
Identify callers quickly
Free

This application allows users to identify and block spam calls, search for unknown numbers, and manage their contacts efficiently. Stay protected from unwanted calls and take control of your phone with this all-in-one solution.

🔧 Utilities
(99K)
12
Nomorobo - Robocall Blocker
Nomorobo - Robocall Blocker
Nomorobo - Robocall Blocker
Call Filter & Scam Shield
Free

Block unwanted robocalls and spam calls with our innovative call filter app. Take back control of your phone and enjoy a peaceful calling experience. Download now to stop annoying calls for good.

🔧 Utilities
(21K)
13
SpamHound SMS Spam Filter
SpamHound SMS Spam Filter
SpamHound SMS Spam Filter
Text Messages Spam Blocker App
Free

Protect yourself from spam messages with a free SMS blocker app that filters unwanted content and blocks annoying marketing texts. Easily create custom filters, manage Blacklists and Whitelists, and stop spam messages from bothering you. Download now to enjoy a spam-free messaging experience!

🔧 Utilities
(1.1K)
14
Call Control: #1 Call Blocker
Call Control: #1 Call Blocker
Call Control: #1 Call Blocker
Block Spam Calls & Robo Calls
Free

An app that helps you manage incoming calls by blocking spam and identifying unknown numbers. Take control of your phone calls with this powerful tool. Download now to stop unwanted calls and stay organized.

🔧 Utilities
(6.4K)
15
SpamSafe: Spam Call Blocker
SpamSafe: Spam Call Blocker
SpamSafe: Spam Call Blocker
Lookup & Block Unknown Numbers
Free

The application is a spam call blocker that helps users take control of their phone communication. It allows users to identify callers, filter out unwanted spam, and access detailed information on any number, ensuring seamless and secure communication. With its comprehensive features, the app aims to protect users from annoying robocalls, persistent telemarketers, and scammers, giving them back their peace of mind.

🔧 Utilities
(4.6K)
16
Caller ID Block: Spam Blocker.
Caller ID Block: Spam Blocker.
Caller ID Block: Spam Blocker.
Call Filter: True Calls
Free

This application helps you take control of your digital communication by blocking unwanted calls, spam messages, and suspicious emails, keeping your phone organized and free from distractions. With advanced filtering technology and customizable rules, you can efficiently block spam and enjoy a secure, distraction-free digital experience.

🔧 Utilities
(0)
17
AdSpamBlock -adblocker
AdSpamBlock -adblocker
AdSpamBlock -adblocker
adblock＆spamfilter
Free

AdSpamBlock is a free ad-blocking and spam-detecting app that protects users from unwanted ads and phishing attempts across browsers and email apps. It offers wide filtering targets, high performance for free, and monitors and blocks illegal tracking codes. Protect your online experience with AdSpamBlock today!

🔧 Utilities
(444)
18
CallHound Unwanted Calls Block
CallHound Unwanted Calls Block
CallHound Unwanted Calls Block
Spam Call Blocker App
Free

Block unwanted calls and spam with this leading call blocking app. Customize rules, link social accounts for backup, and forget about nuisance calls forever. Create a seamless call-blocking experience with CallHound.

🔧 Utilities
(239)
19
Spam Call Blocker - Protect
Spam Call Blocker - Protect
Spam Call Blocker - Protect
Block Unknown Callers－Contacts
Free

Block unwanted calls and texts with this powerful spam blocker app. Enjoy caller ID personalization, SMS filtering, and real-time spam call identification. Stay protected with Anti Spam Call now!

🔧 Utilities
(1.9K)
20
Textkiller - Spam Text Blocker
Textkiller - Spam Text Blocker
Textkiller - Spam Text Blocker
Block Unwanted Messages
Free

Block unwanted spam texts with Textkiller, the innovative app that eliminates 99% of spam messages and protects you from phone scams. Enjoy customizable text blocking and stay spam-text-free with Textkiller. Try it free for 7 days and take control of your texting experience!

🔧 Utilities
(13K)

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