Best Caller Id Unknown Apps

199+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated July 2026

From beginner-friendly picks to power-user tools, our caller id unknown list covers 199+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Caller Id Unknown

Truecaller: Premium Caller ID#1

Truecaller: Premium Caller ID by True Software Scandinavia AB

Spam Blocker・Phone Call Filter
Editor's Choice
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
Easy Caller ID#2

Easy Caller ID by L.S Mobile Apps Holdings LTD

Smart Address Book
Strong Contender
πŸ“Š Productivity
4.4😐(2.7K ratings)
Free
Easy Caller ID screenshot 1
Easy Caller ID screenshot 2
Easy Caller ID screenshot 3
Easy Caller ID screenshot 4

Identify unknown callers and block spam calls with real-time information displayed on your native call screen. Instantly look up any phone number to find caller details and enrich your address book. Your privacy is protected, and all features are completely free.

What We Love

  • πŸ‘ Easy to use
  • πŸš€ Simple and efficient
  • πŸ’‘ Helpful for managing groups
  • πŸ‘ Intuitive contact management

Room to Improve

  • πŸ› Crashes and freezes
  • πŸ› Unreliable sync and backup
  • πŸ’° Expensive subscription model
TrapCall: Reveal No Caller ID#3

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

Control Who Calls You & Block
Worth Considering
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

More Caller Id Unknown apps to explore

4
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
5
Number Finder Caller ID :True
Number Finder Caller ID :True
Number Finder Caller ID :True
Spam and Lookup Protection
Free

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.

Unlimited reverse phone lookupsReal-time caller ID identificationComprehensive spam detection
πŸ”§ Utilities
(70K)
free with in-app purchases
6
Everybody - AI caller ID
Everybody - AI caller ID
Everybody - AI caller ID
by panRobotics
Free

Identify unknown callers and filter out spam calls specifically for Western Balkans phone numbers. This app relies on user-reported spam data to provide accurate caller identification, helping you avoid unwanted interruptions and never miss important calls.

Caller identification for unknown numbersSpam call detectionUser-reported spam data
πŸ” Reference
(942)
free
7
ViewCaller: Caller ID
ViewCaller: Caller ID
ViewCaller: Caller ID
Identify unknown calls & spam
Free

Identify unknown callers and block unwanted spam calls with real-time detection. Access a global database to screen calls and manage your communication for enhanced privacy and security.

Real-time spam detectionGlobal community insightCustomizable blocking
πŸ”§ Utilities
(729)
free with in-app purchases
8
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
9
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
10
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
11
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
12
Caller App : Caller ID & Block
Caller App : Caller ID & Block
Caller App : Caller ID & Block
Identify unknown calls & spam
Free

Identify unknown callers and block unwanted spam calls. This app functions as a caller ID, dialer, and SMS manager, helping you screen calls and texts. It also offers call reminders and a phone number search feature.

Full Screen Caller IDT9 DialerSMS & Messaging
πŸ”§ Utilities
(267)
free with in-app purchases
13
Caller ID - Spam Call Blocker
Caller ID - Spam Call Blocker
Caller ID - Spam Call Blocker
Identify unknown calls & spam
Free

Instantly identify unknown callers and block unwanted spam calls with advanced real-time identification and community-powered protection. Take control of your calls and enjoy a safer communication experience.

Real-time caller identificationAutomatic spam call blockingCommunity-powered protection
πŸ’Ό Business
(127)
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
πŸ”§ Utilities
(403)
free with in-app purchases
15
Caller-ID
Caller-ID
Caller-ID
Reverse Phone Lookup
Free

Identify unknown callers and find out who owns a phone number. This app offers a global reverse lookup for over 1 billion numbers, with features like geolocation and social media directory integration. It also allows users to report and comment on spam or prank callers.

Global reverse phone lookupGeolocation by area codeSocial media directory
πŸ” Reference
(19K)
free with in-app purchases
16
Infgety: CallerID & NumberBook
Infgety: CallerID & NumberBook
Infgety: CallerID & NumberBook
Identify unknown callers fast
Free

Identify unknown callers instantly and protect yourself from spam and scams. This app provides detailed profiles for phone numbers, allowing you to see who is calling and how others have saved their number. Enhance your call security and connect with confidence.

Identify unknown callersSearch by number or nameSpam and scam protection
πŸ”§ Utilities
(277)
free with in-app purchases
17
Show Caller ID & Number Search
Show Caller ID & Number Search
Show Caller ID & Number Search
Spam Call Blocker・Phone Lookup
Free

Identify unknown callers and block unwanted spam calls with this app. It provides real-time caller ID, a global spam database, and allows you to search for caller details. Take control of your phone calls and stay protected from scams.

Caller ID LookupSpam Call BlockerFind Name & Location
πŸ”§ Utilities
(196)
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
NumBuster. Real Name Caller ID
NumBuster. Real Name Caller ID
NumBuster. Real Name Caller ID
Who is calling? Block spam sms
Free

Identify unknown callers and block unwanted calls and SMS messages. Access an offline database of scammers and spammers to screen calls before answering. Discover how other users have identified numbers and find mutual acquaintances.

Real caller name identificationOffline spam and scammer databaseCall and SMS blocking
πŸ”§ Utilities
(386)
free with in-app purchases
20
Truecaller - Caller ID & Block
Truecaller - Caller ID & Block
Truecaller - Caller ID & Block
Spam & Scam Phone Call Blocker
Free
πŸ”§ Utilities
(0)