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Best Unknown Caller Apps

192+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

Out of 192+ unknown caller 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 Unknown Caller

TrapCall: Reveal No Caller ID#1

TrapCall: Reveal No Caller ID by Mosaic S.r.l.

Control Who Calls You & Block
Editor's Choice
πŸ’Ό Business
4.2😞(25K ratings)
FreeAdsIn-App Purchases
#26in Business
TrapCall: Reveal No Caller ID screenshot 1
TrapCall: Reveal No Caller ID screenshot 2
TrapCall: Reveal No Caller ID screenshot 3
TrapCall: Reveal No Caller ID screenshot 4
TrapCall: Reveal No Caller ID screenshot 5
TrapCall: Reveal No Caller ID screenshot 6

Unmask blocked and unknown callers, stop spam, and protect your privacy. Get caller ID for masked numbers, record calls, and receive voicemails as text. This app provides a solution for unwanted and harassing calls.

What We Love

  • πŸ”’ Effective in unmasking blocked numbers
  • πŸš€ Able to record and transcribe calls
  • πŸ‘ Helpful in gathering evidence for legal issues

Room to Improve

  • πŸ› Inaccurate caller ID information
  • πŸ”’ Difficult to fully deactivate and remove from device
  • πŸ”‹ Continued call forwarding even after cancellation
Truecaller: Premium Caller ID#2

Truecaller: Premium Caller ID by True Software Scandinavia AB

Spam Blocker・Phone Call Filter
Strong Contender
πŸ”§ Utilities
4.4😞(251K ratings)
FreeAdsIn-App Purchases
#33in 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 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.

What We Love

  • πŸš€ Blocks spam calls
  • πŸ’‘ Useful caller ID feature
  • πŸ‘ Helps identify scammers

Room to Improve

  • πŸ› Inconsistent performance
  • πŸ”’ Privacy concerns with data collection
  • πŸ’° Expensive premium subscription
Number Finder Caller ID :True#3

Number Finder Caller ID :True by Digitalists Interactive Agency Ltd

Spam and Lookup Protection
Worth Considering
πŸ”§ Utilities
4.7😞(70K ratings)
FreeAdsIn-App Purchases
Number Finder Caller ID :True screenshot 1
Number Finder Caller ID :True screenshot 2
Number Finder Caller ID :True screenshot 3

Identify unknown callers and protect your privacy with this comprehensive reverse phone lookup tool. See who searched for your number, block spam, and manage your digital footprint. Stay safe and informed about who contacts you.

What We Love

  • πŸš€ Helpful in finding unknown callers
  • πŸ‘ Provides useful information
  • πŸ’‘ Ability to track and monitor calls

Room to Improve

  • πŸ› Inaccurate or incomplete information
  • πŸ’° Expensive subscription fees
  • πŸ”’ Privacy concerns with required permissions

More Unknown Caller apps to explore

4
Hiya: Spam Blocker
Hiya: Spam Blocker
Hiya: Spam Blocker
Personal Call Screener
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
πŸ”§ Utilities
(237K)
free with in-app purchases
5
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
πŸ”§ Utilities
(8K)
free with in-app purchases
6
Real Caller : Caller id
Real Caller : Caller id
Real Caller : Caller id
Number Lookup - Phone Numbers
Free

This app allows users to create profiles, search for others, and block unwanted calls. It also offers instant messaging between users and allows you to add multiple names to your verified phone number for easier identification. Premium features are available through subscription.

Create and manage user profilesSearch for other users' profilesBlock unwanted phone calls
πŸ”§ Utilities
(3.3K)
freemium
7
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
πŸ”§ Utilities
(59K)
free with in-app purchases
8
Robokiller: Spam Call Blocker
Robokiller: Spam Call Blocker
Robokiller: Spam Call Blocker
Stop 99% of Robocalls & Texts
Free

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.

Blocks 99% of spam calls and textsAI-powered audio fingerprintingAnswer Bots for robocaller revenge
πŸ”§ Utilities
(413K)
free with in-app purchases
9
Change Phone Number by Numbr
Change Phone Number by Numbr
Change Phone Number by Numbr
Spoof Call & Text, Caller ID
Free

This app provides a private, disposable phone number for calls and texts, protecting your personal information. It's ideal for online transactions, dating, or as a temporary work number, offering transparent fees and no contracts.

Disposable phone numbersInternational and domestic callsSend text messages
πŸ”§ Utilities
(2.6K)
free with in-app purchases
10
Sync.me - Caller ID & Blocker
Sync.me - Caller ID & Blocker
Sync.me - Caller ID & Blocker
Block Spam & Identify Callers
Free

Identify unknown callers in real-time, block spam automatically, and keep your contacts updated with real photos. Search any number worldwide and manage your address book with smart tools.

Live caller IDAutomatic spam blockingReverse number lookup
🌐 Social Networking
(22K)
free with in-app purchases
11
SpamSafe: Spam Call Blocker
SpamSafe: Spam Call Blocker
SpamSafe: Spam Call Blocker
Lookup & Block Unknown Numbers
Free

Block unwanted calls and messages with advanced caller ID, filtering, and a customizable blacklist. Protect yourself from spam, robocalls, and scams with real-time detection and defense.

Spam call blockerReal-time caller IDIntelligent call filter
πŸ”§ Utilities
(4.6K)
free with in-app purchases
12
Show Caller Name & Block Spam
Show Caller Name & Block Spam
Show Caller Name & Block Spam
Know whos calling Scam blocker
Free

Identify unknown callers and block spam calls with real-time caller ID. Search any number to find the caller's name, identity, and even photos. This app also offers smart contact management and offline functionality.

Real ID Caller NameSpam and fraud call protectionPhone number identification
πŸ”§ Utilities
(135)
free with in-app purchases
13
Reveal No Caller ID – MaskOff
Reveal No Caller ID – MaskOff
Reveal No Caller ID – MaskOff
Unmask & trap a blocked call
Free

Identify and record unknown or blocked callers. This app provides instant proof of who is calling, allowing you to gather evidence against harassers and stop unwanted calls. It offers a secure record of all communications.

Reveal hidden caller IDsRecord callsCollect evidence against harassers
πŸ’Ό Business
(523)
free with in-app purchases
14
CallerID: True Number Search
CallerID: True Number Search
CallerID: True Number Search
Identify unknown calls & spam
Free

Instantly identify unknown callers and block spam, scams, and robocalls. This app offers reverse number lookup, SMS spam protection, and customizable blacklists for enhanced phone security and privacy.

Real CallerID and name lookupReverse phone number searchSpam call blocking
πŸ”§ Utilities
(52)
free with in-app purchases
15
RealCall - Spam Call Blocker
RealCall - Spam Call Blocker
RealCall - Spam Call Blocker
Robo call blocker scam shield
Free

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.

AI-powered spam call blockingFraud SMS detectionCustom blocklist and whitelist
πŸ”§ Utilities
(25K)
freemium
16
Caller ID :True Name Caller ID
Caller ID :True Name Caller ID
Caller ID :True Name Caller ID
Identify Calls Name & Photo
Free

Identify unknown callers with true names and regions. Block spam, telemarketing, and unwanted calls. Manage calls with a smart dialer and search any number. Backup and restore contacts easily.

Instant Caller IDCall BlockerSmart Phone Dialer
🌐 Social Networking
(995)
free with in-app purchases
17
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
πŸ”§ Utilities
(99K)
free with in-app purchases
18
NumberBox:CallerID
NumberBox:CallerID
NumberBox:CallerID
Know Your Caller
Free

This app helps you identify unwanted calls by allowing users to report and tag spam or telemarketing numbers. All submissions are anonymous and help build a community-driven database to protect users from potential scams.

Voluntarily report unwanted numbersManually add tags to phone numbersIdentify spam and telemarketing calls
πŸ”§ Utilities
(377)
free
19
Reverse Lookup
Reverse Lookup
Reverse Lookup
Phone number lookup pro.
Free

Identify unknown callers and uncover details about any phone number. This free tool helps you check for spam and find information on cell, landline, and toll-free numbers from the US and Canada.

Find information on phone numbersCheck spam likelinessCopy/paste numbers from call log
πŸ” Reference
(146K)
ad-supported
20
True CallerID: Spam Blocker
True CallerID: Spam Blocker
True CallerID: Spam Blocker
Identify unknown calls & spam
Free

Identify unknown callers and block unwanted calls automatically. This app uses smart spam detection and AI to protect you from robocalls, telemarketers, and scams. Take control of your phone and see caller information before you answer.

Instant Caller IDSmart Call BlockerSpam Detection Alerts
πŸ”§ Utilities
(217)
free with in-app purchases

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