Tech support scam calls are a prevalent nuisance, with Americans receiving over 52.5 billion robocalls in 2025 alone. (antivirus.com) These fraudulent calls often impersonate legitimate companies, aiming to deceive individuals into providing personal information or making unnecessary payments. To safeguard yourself, consider using the following call-blocking applications:
1. Robokiller
Robokiller employs AI-powered "Answer Bots" to engage and waste scammers' time, effectively reducing the number of unwanted calls you receive. It boasts a 99% success rate in blocking robocalls. The app is available for both iOS and Android devices. (blog.youmail.com)
2. Hiya
Hiya offers robust spam and fraud protection by identifying and blocking unwanted calls. It provides caller ID features, allowing users to see the name and reason for the call before answering. Hiya is available for both iOS and Android devices. (techlog360.com)
3. Truecaller
Truecaller maintains a vast database of known spam numbers, updated daily with community feedback. It offers real-time caller ID, spam call auto-block, and fraud detection alerts. Truecaller is available for both iOS and Android devices. (rahsha.in)
4. Nomorobo
Nomorobo uses a combination of blacklisting and behavioral analysis to identify and block unwanted calls. It is available for both iOS and Android devices and offers a free trial, as well as a subscription-based service. (smarttechsavvy.com)
5. YouMail
YouMail blocks known spam numbers automatically and plays an "out of service" message to trick robocallers. It identifies the type of spam call (e.g., IRS scam, insurance fraud) and protects your voicemail from spam and hacking attempts. YouMail is available for both iOS and Android devices. (blog.youmail.com)
6. Mr. Number
Mr. Number provides both reverse phone lookup services and call-blocking capabilities. It utilizes crowd-sourced data to identify telemarketers and other unwanted callers. Mr. Number is available for both iOS and Android devices. (callwave.com)
7. CallApp
CallApp offers a comprehensive suite of features, including spam blocking, caller ID, and call recording. It has a large database of known spam numbers and provides real-time alerts for incoming spam or scam calls. CallApp is available for both iOS and Android devices. (verified.org)
8. PrivacyStar
PrivacyStar blocks known scammers and lets you add other phone numbers to block. It reports hundreds of thousands of offending callers to the FTC. PrivacyStar is available for both iOS and Android devices. (moneytalksnews.com)
9. Call Control
Call Control is a community-powered blocklist with over 1 billion blocked numbers. It offers both free and premium versions, with the premium version providing additional features. Call Control is available for both iOS and Android devices. (whocalledus.net)
10. AT&T ActiveArmor
AT&T offers Call Protect, which displays a "V" (for verified) on your caller ID for calls considered legitimate. It also blocks potentially fraudulent calls by giving a busy signal. You can activate Call Protect through your AT&T account. (consumerreports.org)
11. Verizon Call Filter
Verizon automatically enrolls eligible customers in the free version of Call Filter, which detects spam and blocks high-risk calls. A more robust paid version, Call Filter Plus, is also available. You can activate Call Filter through your Verizon account. (consumerreports.org)
12. T-Mobile Scam Shield
T-Mobile offers two free anti-robocall tools: Scam ID and Scam Block. Scam ID identifies and tags suspicious calls, while Scam Block blocks calls before they ring. You can activate these services by dialing specific codes on your T-Mobile device. (consumerreports.org)
Conclusion
Protecting yourself from tech support scam calls is essential in today's digital age. Utilizing call-blocking apps can significantly reduce the number of unwanted calls you receive. While many of these apps offer free versions, some provide premium features for enhanced protection. Evaluate each option to determine which best fits your needs and preferences.
Highlights:
- Say goodbye to spam calls - NordVPN launches new spam call protection, Published on Tuesday, July 29



