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Best Telemarketer Blocker Apps

201+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

Out of 201+ telemarketer blocker 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 Telemarketer Blocker

RealCall - Spam Call Blocker#1

RealCall - Spam Call Blocker by Second Phone Number Inc

Robo call blocker scam shield
Editor's Choice
🔧 Utilities
4.5😊(25K ratings)
FreeIn-App Purchases
RealCall - Spam Call Blocker screenshot 1
RealCall - Spam Call Blocker screenshot 2
RealCall - Spam Call Blocker screenshot 3
RealCall - Spam Call Blocker screenshot 4
RealCall - Spam Call Blocker screenshot 5
RealCall - Spam Call Blocker screenshot 6

Automatically identify and filter out unwanted calls, robocalls, and telemarketers using advanced AI. Protect yourself from scams and unknown numbers with customizable blocklists and smart alerts. Enjoy an ad-free experience and advanced features with a premium subscription.

What We Love

  • 🚀 Blocks spam calls effectively
  • 🔒 Protects against scammers
  • 👍 Easy to set up and use
  • 🚀 Stops unwanted calls quickly

Room to Improve

  • 🐛 Blocks some legitimate calls
  • 🔍 Voicemail retrieval issues
  • 🔍 Poor customer support
Call Control: #1 Call Blocker#2

Call Control: #1 Call Blocker by Call Control, LLC

Block Spam Calls & Robo Calls
Strong Contender
🔧 Utilities
4.5😞(6.4K ratings)
FreeAdsIn-App Purchases
Call Control: #1 Call Blocker screenshot 1
Call Control: #1 Call Blocker screenshot 2
Call Control: #1 Call Blocker screenshot 3
Call Control: #1 Call Blocker screenshot 4
Call Control: #1 Call Blocker screenshot 5
Call Control: #1 Call Blocker screenshot 6

This app automatically blocks unwanted calls from spammers, telemarketers, and robocallers using smart technology. It allows users to create personal blocklists and offers a free reverse lookup feature. Protect your phone from scams and unwanted interruptions.

What We Love

  • 👍 Excellent call blocking capabilities
  • 🚀 Effective at reducing spam calls
  • 💡 Useful call identification features

Room to Improve

  • 🐛 Compatibility issues with newer iOS versions
  • 🔒 Concerns about privacy and data sharing
  • ⚠️ Inconsistent performance and reliability
Robokiller: Spam Call Blocker#3

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

Stop 99% of Robocalls & Texts
Worth Considering
🔧 Utilities
4.5😐(413K ratings)
FreeAdsIn-App Purchases
#7in 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 app blocks up to 99% of unwanted spam calls and texts using advanced AI and a vast database. It also offers a unique feature to annoy spammers with automated responses and protects your personal information from being sold online.

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

More Telemarketer Blocker apps to explore

4
Mr. Number Lookup & Call Block
Mr. Number Lookup & Call Block
Mr. Number Lookup & Call Block
Identify callers quickly
Free

Instantly identify unknown callers and block unwanted calls. This app provides lightning-fast phone number lookups, protects against scam calls, and offers advanced spam detection to keep your device free from robocalls. Manage your personal block list and report spam to help the community.

Identify unknown callersBlock specific phone numbersSpam detection and blocking
🔧 Utilities
(99K)
free with in-app purchases
5
T-Mobile Scam Shield
T-Mobile Scam Shield
T-Mobile Scam Shield
Your call control center.
Free

This app provides advanced call management features to protect you from unwanted scam and robo calls. It uses AI and machine learning to identify and block suspicious numbers, offers full caller ID, and allows you to report fraudulent calls.

Scam BlockScam ReportingCaller ID
🔧 Utilities
(208K)
free
6
Nomorobo - Robocall Blocker
Nomorobo - Robocall Blocker
Nomorobo - Robocall Blocker
Call Filter & Scam Shield
Free

This app blocks unwanted robocalls, telemarketers, spam texts, and scammers from reaching your phone. It identifies and filters out millions of malicious callers daily, while allowing important alerts to get through. Enjoy peace of mind with real-time protection and customizable blocking options.

Real-time robocall blockingIdentifies new robocallers dailyAllows important alerts
🔧 Utilities
(21K)
free with in-app purchases
7
Spam Call Blocker by RoboGuard
Spam Call Blocker by RoboGuard
Spam Call Blocker by RoboGuard
Stop 99% of Scams & Robocalls
Free

This app automatically blocks unwanted spam, scam, and robocalls on your iPhone. It protects your privacy by blocking calls directly on your device and offers features like custom block lists, reverse phone lookup, and neighbor spoof protection. Stay protected with continuously updated spam lists and a system that learns from user reports.

Automatic spam call blockingPrivacy-focused on-device blockingCustomizable block and allow lists
🔧 Utilities
(526)
subscription
8
Spam Call Blocker: Stop Scam
Spam Call Blocker: Stop Scam
Spam Call Blocker: Stop Scam
Block Telemarketers, Robocalls
Free

This app helps you avoid unwanted calls from telemarketers, scammers, and robocallers. It identifies unknown callers and allows you to block them, saving you time and frustration. Access an extensive database of verified spam numbers and look up unfamiliar numbers before you dial.

Verified spam number databaseDaily database updatesPhone number lookup
🔧 Utilities
(567)
free with in-app purchases
9
Call Protect: Robocall Blocker
Call Protect: Robocall Blocker
Call Protect: Robocall Blocker
Caller ID & Spam Call Blocker
Free

This app blocks unwanted calls from telemarketers, scammers, and spammers. It provides caller ID information for suspicious numbers and automatically blocks high-risk callers. You can also perform free reverse phone lookups for numbers in the US and Canada.

Automatic spam call filterCaller ID for risky numbersReverse phone lookup
🔧 Utilities
(31K)
free with in-app purchases
10
WideProtect Spam Call Blocker
WideProtect Spam Call Blocker
WideProtect Spam Call Blocker
Stop scam, fraud, spoofing
Free

Block unwanted calls from telemarketers, scammers, and spoofed numbers. Easily add prefixes to block millions of numbers and entire area codes. Works offline with no registration required.

Block by number prefixesBlock entire area codesWorks offline
🔧 Utilities
(2.3K)
free with in-app purchases
11
Robo Shield: AI Spam Filter
Robo Shield: AI Spam Filter
Robo Shield: AI Spam Filter
Block Unknown Caller ID Scams
Free

This app uses artificial intelligence to screen incoming calls, distinguishing legitimate calls from spam, robo callers, and scams. It acts as a personal call assistant, identifying unknown callers and providing detailed information about each call.

AI-powered call screeningIdentifies spam, unverified, and verified callsAdvanced Caller ID with call categorization
🔧 Utilities
(54)
subscription
12
CallerSmart: Reverse Lookup
CallerSmart: Reverse Lookup
CallerSmart: Reverse Lookup
Caller ID & Spam Call Blocker
Free

Identify unknown callers and block unwanted spam texts and calls. Get detailed caller information before answering and protect your privacy by adding your number to the Do Not Call Registry. Manage your calls effectively with this easy-to-use tool.

Reverse phone lookupCaller ID for incoming callsSMS filter
🔧 Utilities
(15K)
free with in-app purchases
13
Firewall - Spam Call Blocker
Firewall - Spam Call Blocker
Firewall - Spam Call Blocker
Block Spam Calls and Robocalls
Free

This app blocks unwanted calls and texts by only allowing approved contacts to reach you. It also offers visual voicemail, privacy protection for your number, and the ability to make anonymous outbound calls. Enjoy a cleaner, more productive phone experience.

Block 100% of spam callsWhitelisting for approved callersSMS spam blocker
🔧 Utilities
(1.6K)
subscription
14
Truecaller: Premium Caller ID
Truecaller: Premium Caller ID
Truecaller: Premium Caller ID
Spam Blocker・Phone Call Filter
Free

Identify unknown callers and block spam calls and texts. This app uses AI and community data to screen calls, identify callers, and offers an AI assistant for call screening. Premium features include ad removal, unlimited lookups, and profile insights.

Identify unknown callersBlock spam calls and SMSAI-powered call screening
🔧 Utilities
(251K)
free with in-app purchases
15
Spam Call and Text Blocker
Spam Call and Text Blocker
Spam Call and Text Blocker
Block Scam and Filter Spammers
Free

This app filters unwanted spam texts and protects you from scams. It automatically checks incoming messages for suspicious content, sending them to a junk folder while keeping your data private. Customize blocking and allow lists for a cleaner inbox.

Automatic spam and scam detectionMessages filtered to junk folderOn-device message checking for privacy
🔧 Utilities
(59)
free with in-app purchases
16
Nomorobo Max Spam Call Blocker
Nomorobo Max Spam Call Blocker
Nomorobo Max Spam Call Blocker
Call Filter & Scam Shield
Free

This app blocks 100% of spam calls and texts using advanced technology and a vast database of known robocallers. It ensures you never miss important calls while protecting you from scams and unwanted messages. The service also offers a family plan for comprehensive protection.

Blocks 100% of spam calls and textsWorld's largest database of robocallersAI-powered insights for continuous improvement
📊 Productivity
(5K)
subscription
17
Google Voice
Google Voice
Google Voice
Smarter voice calling
Free

This app provides a dedicated phone number for calls, texts, and voicemail, syncing across devices for seamless use anywhere. It offers advanced spam filtering, call forwarding, and searchable message history. Voicemails are transcribed for easy reading and can be sent to your email.

Dedicated phone numberCall, text, and voicemailCross-device syncing
📊 Productivity
(62K)
free
18
CallApp
CallApp
CallApp
Caller ID & Spam Call Blocker
Free

Identify unknown callers and block unwanted calls with an advanced caller ID. Access a global database of billions of numbers to know who is calling before you answer. Protect your privacy and security with this powerful call management tool.

Advanced caller IDIdentify unknown numbersBlock spam calls
🔧 Utilities
(354)
free with in-app purchases
19
Block Spam Call & Fast Blocker
Block Spam Call & Fast Blocker
Block Spam Call & Fast Blocker
Stop Robocalls & Scam Shield
Free

This app helps you manage your calls, links, and contacts. It identifies unknown callers, scans suspicious URLs, and cleans up your contact list to keep your phone secure and organized.

Smart call identificationURL scannerContact cleaner
🔧 Utilities
(8)
free with in-app purchases
20
Getcontact
Getcontact
Getcontact
Caller ID & Spam Blocker
Free

This app helps you identify unknown callers and block unwanted spam calls and messages. It filters your communications, allowing you to focus on genuine conversations and maintain privacy with secure, encrypted chat features.

Caller identification for unknown numbersSpam call and message blockingSMS inbox cleanup
🔧 Utilities
(59K)
free with in-app purchases