CIA - Caller ID & Call Blocker

Contains adsIn-app purchases
61.2K reviews
Content rating
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

CIA - Caller ID will help you identify unknown numbers on incoming calls. CIA also helps you block unwanted calls and warns you about spam/scam calls based on numbers reported by millions of users worldwide.

With CIA you can immediately see who an anonymous caller is, whether it is a business or a personal number. Our database identifies contact data for more than 1.5 billion numbers worldwide. Block phone numbers and add them to your own personal blacklist.

• Real-time Caller ID: Always know who’s calling.
• Slide, tap, swipe: Slide the Caller ID up or down the screen, tap to minimize or swipe to dismiss during calls.
• Smart call actions: Mute or block calls, reject calls with predefined text messages, or set a call back reminder.
• Call blocker: Block calls from telemarketers and other scam/spam callers.
• Spam warning: Get warnings for more than 1 million spam numbers worldwide.
• Search numbers: Identify name, address, or business information of who’s behind a strange telephone number.
• Contact shortcuts: Multiple ways to handle contacts on after call screens.
Updated on
Mar 7, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App info and performance, and Device or other IDs
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

60.8K reviews
A Google user
October 22, 2018
Doesn't work as advertised. It only tells you what you already know from your phone call logs. 'Unknown Caller'. It does have a link to Google the number (as if you weren't already doing that). Waste of time. Edit: since uninstalling i've received even more unwanted calls from suspicious numbers. I'd suspect this app company distributes your personal info.
50 people found this review helpful
Did you find this helpful?
Caller ID App Dev Ciamedia
October 23, 2018
Hi Miles. We're sorry to hear that the app did not work for you. The app searches for numbers which are in the public domain so it may that these numbers weren't. I can confirm that under no circumstances do we give any personal information out to any third parties. We take your data protection very seriously. Kindest regards, Ian
A Google user
November 2, 2019
Sorry but the caller ID part of this app is not good, I got a call that I recognized as a local landline, this app said it was a private number and did not know who it was from. I did a quick reverse phone number lookup and came up with a name and address right here in my area. So if it cannot identify a simple landline what can it do?
45 people found this review helpful
Did you find this helpful?
A Google user
May 12, 2019
The Ads dont turn off after payment 1.99€ After session started using Google and tapping on the option to set the phone number for verification the app crash itself. To solve that problem I had to uninstall and reinstall the app Los anuncios no se eliminan tras el pago y después de iniciar sesión usando Google al presionar sobre la opción para poner el número de teléfono y verificarlo, la aplicación se detiene. Para resolver el problema he tenido que desinstalar y volver a instalar la app.
17 people found this review helpful
Did you find this helpful?
Caller ID App Dev Ciamedia
May 20, 2019
Dear Vera, We are sorry to hear, that you are experiencing these issues. Please send us an email to with your order confirmations number from your ad-free purchase. And also please send a screenshot of the error message, you get when entering your phone number. Then we will look into it. Good day from Sarah

What's new

Thank you for using CIA - Caller ID & Call Blocker. We regularly update this app to optimize performance, add new features and integrate improvements based on your suggestions. We hope you continue to enjoy using this app.