Best Secure Call Blocker App

236+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated August 2026

Looking for free secure call blocker app? 20 of our 236+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Secure Call Blocker App (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Verizon Call FilterVerizon Call FilterFree4.7★ (300K)NoNoAug 2026
2T-Mobile Scam ShieldT-Mobile Scam ShieldFree4.7★ (208K)NoNoAug 2026
3Robokiller: Spam Call BlockerRobokiller: Spam Call BlockerFree4.5★ (414K)NoYesAug 2026
4Hiya: Spam BlockerHiya: Spam BlockerFree4.5★ (238K)NoYesAug 2026
5GetcontactGetcontactFree4.4★ (60K)YesYesAug 2026
6Truecaller - Caller ID & BlockTruecaller - Caller ID & BlockFree2.0★ (4)YesYesAug 2026
7Call BlockerCall BlockerFree4.5★ (1.2K)YesYesAug 2026
8CallPeek: Caller ID BlockerCallPeek: Caller ID BlockerFree3.9★ (10)YesYesAug 2026

Top Picks for Secure Call Blocker App

Verizon Call Filter#1

Verizon Call Filter by Verizon Wireless

Put an end to mystery calls
Editor's Choice
🔧 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

This app helps you identify and block unwanted spam and robocalls. It automatically screens incoming calls, alerts you to suspected spam, and can send high-risk callers directly to voicemail. You can also report spam numbers and customize your blocking preferences for greater control over your calls.

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#2

T-Mobile Scam Shield by MetroPCS

Your call control center.
Strong Contender
🔧 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

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.

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
Robokiller: Spam Call Blocker#3

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

Stop 99% of Robocalls & Texts
Worth Considering
🔧 Utilities
4.5😐(414K ratings)
FreeIn-App Purchases
#8in 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 Secure Call Blocker App apps to explore

4
Hiya: Spam Blocker
Hiya: Spam Blocker
Hiya: Spam Blocker
AI fraud & spam protection
Free

Block unwanted spam and scam calls while identifying unknown callers. Get real-time caller ID and call reasons before you answer, and protect your voicemail from spam. Offers premium features for an enhanced calling experience.

Spam and scam call blockingReal-time caller IDCall reason identification
🔧 Utilities
(238K)
free with in-app purchases
5
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
(60K)
free with in-app purchases
6
Truecaller - Caller ID & Block
Truecaller - Caller ID & Block
Truecaller - Caller ID & Block
Spam & Scam Phone Call Blocker
Free

Identify unknown callers, block spam and scam calls, and filter unwanted SMS messages. This app provides real-time spam protection and smart contact management for safer, more organized communication.

Identify unknown callersBlock spam and scam callsFilter unwanted SMS
🔧 Utilities
(4)
free with in-app purchases
7
Call Blocker
Call Blocker
Call Blocker
Identify & Block spam calls
Free

Block unwanted calls, identify suspicious numbers, and report spam. Access a large community database to avoid phone scams and extra charges. Protect yourself from telemarketers and unknown callers.

Block any phone numberIdentify commercial callsReport suspicious numbers
🔧 Utilities
(1.2K)
free with in-app purchases
8
CallPeek: Caller ID Blocker
CallPeek: Caller ID Blocker
CallPeek: Caller ID Blocker
Block trap call, true caller
Free

Identify unknown callers, manage your contacts, and review messages. This app provides tools to look up phone numbers, organize communication, and block unwanted or spam calls for enhanced phone safety.

Identify unknown numbersManage contact listReview messages
🔧 Utilities
(10)
free with in-app purchases
9
Spam Call Blocker • Caller ID
Spam Call Blocker • Caller ID
Spam Call Blocker • Caller ID
Stop Robocalls & SMS Filter
Free

Instantly block unwanted calls and filter spam texts with advanced detection technology. Identify unknown callers in real-time and protect your personal data with a privacy-first design. Enjoy a cleaner, safer communication experience.

Automatic call blockingReal-time caller IDIntelligent SMS filtering
🔧 Utilities
(2)
free with in-app purchases
10
Call Blocker: Scam Spam Lookup
Call Blocker: Scam Spam Lookup
Call Blocker: Scam Spam Lookup
Phone Defender Filter
Free

Block unwanted telemarketing and spam calls with this app. It identifies and blocks known robocall numbers, preventing them from reaching you. Save time and frustration by filtering out pointless marketing calls.

Block unsolicited callsIdentify robocall numbersAlerts for known spammers
🔧 Utilities
(192)
subscription
11
Call Control: #1 Call Blocker
Call Control: #1 Call Blocker
Call Control: #1 Call Blocker
Block Spam Calls & Robo Calls
Free

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.

Smart blocking technologyAutomatic spam call blockingPersonal blocklist
🔧 Utilities
(6.4K)
free with in-app purchases
12
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
(663)
free with in-app purchases
13
Call ID - Call Blocker
Call ID - Call Blocker
Call ID - Call Blocker
Verified Caller, Block Spamers
Free

Identify unknown callers in real-time and block unwanted numbers before they ring. This app uses a local database of known spam numbers and community reports to protect you from robocalls, telemarketers, and scams. Enjoy uninterrupted calls and enhanced privacy.

Live Caller ID for unknown numbersBlock robocalls, telemarketers, and scamsLocal database of 14,000+ spam numbers
🔧 Utilities
(8K)
free with in-app purchases
14
CallApp - Caller ID & Block
CallApp - Caller ID & Block
CallApp - Caller ID & Block
Unknown calls & spam calls
Free

Identify unknown callers and block unwanted spam calls with this comprehensive caller ID and call blocker app. It also features a smart dialer, SMS protection, and call reminders to manage your communications effectively.

Advanced Caller IDSpam and Fraud Call BlockingSmart Dialer
🔧 Utilities
(554)
free with in-app purchases
15
Robo Call Blocker Pro
Robo Call Blocker Pro
Robo Call Blocker Pro
Clean spam ads,full protection
Free

Block unwanted robocalls, spam, and fraudulent calls. This app also enhances your browsing experience by blocking ads, trackers, and malicious sites in Safari, saving data and improving speed.

Block robocalls, spam, and fraudBlock ads and trackers in SafariSave mobile data
📊 Productivity
(6)
free with in-app purchases
16
Begone: Spam Call Blocker
Begone: Spam Call Blocker
Begone: Spam Call Blocker
Call blocking and directory
Free

Block unwanted calls and identify unknown callers with this productivity app. It allows for quick blocking of individual numbers or entire ranges using a wildcard system. You can also create a private directory to label incoming calls without saving them to your contacts.

Block individual numbers and rangesWildcard character for broad blockingPrivate caller ID directory
📊 Productivity
(65)
free with in-app purchases
17
Unmask - Premium Caller ID
Unmask - Premium Caller ID
Unmask - Premium Caller ID
See Hidden Number, Block Spam
Free

Identify unknown, blocked, or hidden numbers before you answer. This tool reveals the real identity behind suspicious calls, blocks spam, and allows you to search any number. Take control of your phone and never miss important calls again.

Reveal hidden numbersCaller identificationSpam and scam blocking
🔧 Utilities
(22)
subscription
18
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
(32K)
free with in-app purchases
19
Safe Line: Call Blocker
Safe Line: Call Blocker
Safe Line: Call Blocker
Spam Calls
Free

This app helps you avoid unwanted spam and scam calls by instantly blocking them. Protect yourself from bothersome callers with an easy-to-use blocking feature. Manage your subscriptions and privacy through your app store settings.

Block spam calls instantlyProtect from scammersManage subscriptions
🔧 Utilities
(1)
free with in-app purchases
20
Simple Call Blocker
Simple Call Blocker
Simple Call Blocker
Block phone number ranges.
Free

Block unwanted calls on your iPhone by individual numbers or entire ranges. Create an allow list for specific numbers or contacts, ensuring they never get blocked. This app prioritizes simplicity and privacy, without collecting your data.

Block individual phone numbersBlock ranges of phone numbersCreate an allow list
🔧 Utilities
(3K)
free

FAQ about Secure Call Blocker App

What is the best secure call blocker app for iPhone?
Verizon Call Filter tops our secure call blocker app ranking as of August 2026, with a 4.7-star average from 300K App Store ratings, and it's free to download.
Yes — 20 of the top secure call blocker app we rank are free to download, including Verizon Call Filter and T-Mobile Scam Shield.
Verizon Call Filter has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 236+ secure call blocker app on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Verizon Call Filter is designed to help you manage incoming calls by identifying and blocking spam and robocalls. It alerts you to suspected spam, can automatically block high-risk callers, and allows you to report unwanted numbers. The app aims to give you more control over who can reach you on your phone.
Key features include identifying suspected spam calls with alerts, automatically blocking high-risk callers, the ability to report numbers as spam, and filters to block other unwanted callers like robocalls. Users can also adjust their spam filter settings. The 'Plus' version offers additional features like Caller ID and blocking neighborhoods.