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Best Silence Unknown Callers Apps

168+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated May 2026

Out of 168+ silence unknown callers apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Silence Unknown Callers

Phone#1

Phone by Apple Inc.

Editor's Choice
🔧 Utilities
4.0😐(8.5K ratings)
Free
Phone screenshot 1
Phone screenshot 2

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.

What We Love

  • 🚀 Easy to use
  • 📞 Reliable for making calls
  • 🔒 Secure and private
  • 📝 Live voicemail transcription

Room to Improve

  • 🐛 Notification issues
  • 🔇 Microphone problems
  • 🔍 Lacking advanced call screening features
Robokiller: Spam Call Blocker#2

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

Stop 99% of Robocalls & Texts
Strong Contender
🔧 Utilities
4.5😐(413K ratings)
FreeAdsIn-App Purchases
#11in 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
Truecaller: Premium Caller ID#3

Truecaller: Premium Caller ID by True Software Scandinavia AB

Spam Blocker・Phone Call Filter
Worth Considering
🔧 Utilities
4.4😞(251K ratings)
FreeAdsIn-App Purchases
#43in Utilities
Truecaller: Premium Caller ID screenshot 1
Truecaller: Premium Caller ID screenshot 2
Truecaller: Premium Caller ID screenshot 3
Truecaller: Premium Caller ID screenshot 4
Truecaller: Premium Caller ID screenshot 5
Truecaller: Premium Caller ID screenshot 6

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!

What We Love

  • 🚀 Blocks spam calls
  • 💡 Useful caller ID feature
  • 👍 Helps identify scammers

Room to Improve

  • 🐛 Inconsistent performance
  • 🔒 Privacy concerns with data collection
  • 💰 Expensive premium subscription

More Silence Unknown Callers 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
Verizon Call Filter
Verizon Call Filter
Verizon Call Filter
Put an end to mystery calls
Free

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!

🔧 Utilities
(300K)
6
Call ID - Call Blocker
Call ID - Call Blocker
Call ID - Call Blocker
Verified Caller, Block Spamers
Free
🔧 Utilities
(8K)
7
TrapCall: Reveal No Caller ID
TrapCall: Reveal No Caller ID
TrapCall: Reveal No Caller ID
Control Who Calls You & Block
Free

Take control of your incoming calls with an application that reveals unknown numbers and blocks unwanted callers. Download now to put an end to anonymous calls and stay in charge of your phone.

💼 Business
(25K)
8
Getcontact
Getcontact
Getcontact
Caller ID & Spam Blocker
Free

Manage your calls more efficiently with this app that helps identify unknown numbers, block spam calls, and organize your contacts easily. Stay in control of your communication with just a few taps. Download now to simplify your call management experience.

🔧 Utilities
(59K)
9
Google Voice
Google Voice
Google Voice
Smarter voice calling
Free

"Get a smarter voice calling experience with this app that provides you with a phone number for calls, texts, and voicemail. Stay in control with spam filtering, personalized settings, and easy message management across devices. Enjoy advanced features like voicemail transcription and save on international calling rates. Available for personal Google Accounts in the US and Google Workspace accounts in select markets."

📊 Productivity
(62K)
10
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)
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
Line2 - Second Phone Number
Line2 - Second Phone Number
Line2 - Second Phone Number
Calls, Texts, & SMS Messaging
Free

Get a second phone number for calls and texts with Line2 - a convenient communication app that helps you manage work and personal contacts separately. Stay connected on the go without needing a second device. Try Line2 today!

📊 Productivity
(20K)
13
Reveal No Caller ID – MaskOff
Reveal No Caller ID – MaskOff
Reveal No Caller ID – MaskOff
Unmask & trap a blocked call
Free

Unmask unknown calls with our app - see who's behind the No Caller ID! Block unwanted calls and take control of your incoming calls today.

💼 Business
(523)
14
Number Finder True: Caller ID
Number Finder True: Caller ID
Number Finder True: Caller ID
Spam and Lookup Protection
Free

Reverse Phone Lookup application that helps you identify unknown callers and block spam calls. Simply enter a phone number to get detailed caller information and take control of your incoming calls. Stay informed and stay safe with Number Finder.

🔧 Utilities
(70K)
15
Nextplus: Private Phone Number
Nextplus: Private Phone Number
Nextplus: Private Phone Number
Unlimited 2nd Line Talk & Text
Free

Get a private phone number with Nextplus for unlimited 2nd line talk and text. Stay connected without sharing your personal number. Download now for secure communication.

🌐 Social Networking
(90K)
16
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)
17
Caller ID - Spam Call Blocker
Caller ID - Spam Call Blocker
Caller ID - Spam Call Blocker
Identify unknown calls & spam
Free

A smart app that identifies and blocks spam calls, providing users with detailed Caller ID information. Protect your privacy and avoid unwanted interruptions with this essential tool.

💼 Business
(127)
18
Show Caller Name & Block Spam
Show Caller Name & Block Spam
Show Caller Name & Block Spam
Know whos calling Scam blocker
Free

This application identifies incoming calls and displays the caller's name, making it easier to recognize who is calling before answering. Never miss an important call again – download now!

🔧 Utilities
(135)
19
Show Caller ID & Spam Blocker
Show Caller ID & Spam Blocker
Show Caller ID & Spam Blocker
Always Know who's calling
Free

This app displays caller information for incoming calls, including name, location, and type of call. Easily identify unknown numbers and manage your calls more effectively. Download now to make the most of your incoming calls!

🔧 Utilities
(304)
20
T-Mobile Scam Shield
T-Mobile Scam Shield
T-Mobile Scam Shield
Your call control center.
Free

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.

🔧 Utilities
(208K)

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