Block scam calls and stop any unwanted call with CallDetector.
CallDetector offers smart blocking and customizable controls with a privacy-first approach to curb scam and unwanted calls. Rated 4.36/5 from 33,636 reviews and backed by a large install base, it shows strong momentum with over 1,000,000+ downloads and 1.1K new installs in the last 30 days.
Pros & Cons
Privacy-first design that emphasizes user data protection
Flexible block and allow lists for personalized control
Ability to file caller complaints to help improve caller data
Carrier exclusivity to select networks (Total Wireless, Tracfone, Straight Talk, Simple Mobile, Walmart Family Mobile, SafeLink) which can optimize performance for those users
Limited to the listed carrier ecosystem and not a universal solution
Requires access to sensitive data (call logs, contacts) to function effectively
Relies on multiple permissions and ad identifiers, which may raise privacy-conscious considerations
About CallDetector
CallDetector is a productivity app developed by PrivacyStar.
Download Statistics
CallDetector has been downloaded 1.4 million times. In the last 30 days, the app was downloaded 1.1 thousand times.
User Ratings
CallDetector is rated 4.36 out of 5 stars. The rating is based on 34 thousand ratings.
App Information
CallDetector is FREE to download. The APK download size is 19.14 MB. The latest version available is 4.0.1.0127. The last update was on April 2, 2026.
Technical Requirements
CallDetector requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play July 2014.
Description
CallDetector – Block Scam & Spam Calls
Stop unwanted calls today with CallDetector!
Exclusively for Total Wireless, Tracfone, Straight Talk Wireless, Simple Mobile, Walmart Family Mobile, and SafeLink Wireless customers, CallDetector helps you control your phone by blocking known scam calls and letting you block anyone else you don’t want to hear from – individuals, telemarketers, and more.
✅Smart Call Blocking
Automatically block known scam callers to protect your time.
✅Custom Call Controls
Create a personalized block list – block any number, category (e.g., political calls, account services), or anonymous calls.
✅Allow List
Add important contacts to your allowed call list to ensure you never miss what matters.
✅File Caller Complaints
Report and file complaints against unwanted callers directly through the app.
✅Privacy First Design
Your contacts stay private. They’re only used to enhance your call experience and never shared.
Who Can Use It?
CallDetector is free for loyal customers of:
● Tracfone® ● SafeLink Wireless® ● Straight Talk® ● Total Wireless™ ● Simple Mobile® ● Walmart Family Mobile®
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In 2019. I wrote "I have been using Call Detector for about 30 days with success!" As of September 6, 2024, I am still successfully using and enjoying "Call Detector." My first cellphone, in ~ 2013 was from TracFone. We are pleased with their service and variety of calling plans. Their rates are more economical than those of other providers. TracFone has recently become a member of the Verizon family.
★★★★★L· Sep 4, 2025
Thanks for your help. Thanks for saving my log. I uninstalled you guys. Because I was having problems with my phone. I read the reviews of Tracfone. They were having problems too. No Stars for Tracfone. So to let you know. Tracfone is having a lot of problems now. I got the Dashboard back. But that's it. You can't buy anything on Tracfone App. Will update when it happens.
★★★★☆J R· Aug 21, 2025
If you have telemarketed, scammers or just need to block any unwanted calls. This app works most of the time. When it doesn't the caller gets your voice mail and if they leave a message that can quickly fill the mailbox. I don't understand when a call is blocked why do they get to leave a voice mail? So it's not actually blocked.
★☆☆☆☆M Dawk· Jun 10, 2025
Doesn't block the calls. I get calls every day, and it shows on the screen it is a spam call, but they still are able to leave a voicemail message and if I am on the phone with someone when the spammer calls it disconnects me.
★☆☆☆☆Kyle Marie Hatzenbuehler· Oct 9, 2025
Update 10/9/25: My Call Detector app was removed without my permission & replaced with Orion Call Detector; NOT an upgrade to the original app-all my Approved Callers & Blocked #s are GONE My Block List and Approved List did not transfer from my old Samsung Galaxy S7 to my new Samsung Galaxy S21FE 5G. Also blocked calls are still allowed to go to Voicemail where they can still leave their robo messages & spam, filling up my voicemail requiring me to spend time clearing them out one by one.
★☆☆☆☆Joseph Dana (Jo tha fixer)· Nov 13, 2025
This app used to be really good...since they changed the logo it sucks...it used to pop up when I got a call, and it would ask block it doesn't do that no more, and it lets every spam caller through even though I have every thing checked to block related to spam... I left a really good review a couple of years ago, but I had to come back and share this... please fix this otherwise it's over lol
Google Play Rankings for CallDetector
This app is not ranked
Technologies used by CallDetector
CallDetector is requesting 16 permissions and is using 53 libraries.
Show details
Trust & Safety: Requested permissions include access to network state, internet, notifications, read call logs, read contacts, read phone state, receive boot completed, wake lock, ad IDs, and other system-level capabilities. The app describes a Privacy First Design in its description, but users should review the permissions and terms to understand how data is used and protected.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
