Telemarketing calls are a persistent nuisance for many Americans, with over 52.5 billion robocalls received in 2025 alone. (antivirus.com) To combat this, several apps have emerged to help users block unwanted calls. Here's a look at some of the top contenders:
What Are the Top Apps for Blocking Telemarketing Calls in the US?
RoboKiller
RoboKiller utilizes AI-powered audio fingerprinting technology to identify and block spam calls, even when scammers change their numbers. In testing, it successfully blocked 47 out of 50 spam calls over a two-week period. (fone.tips) Additionally, RoboKiller offers "Answer Bots" that waste scammers' time, providing both protection and entertainment. The app requires a subscription, with a 7-day free trial available.
Truecaller
With a vast global database, Truecaller identifies unknown callers and blocks spam calls. It boasts a 94% accuracy rate in detecting spam calls, with minimal false positives. (fone.tips) The free version includes ads, while the premium version offers additional features like call recording.
Hiya
Hiya powers the built-in spam detection on Samsung devices and AT&T phones. It offers caller ID, spam detection, and call blocking. The free version provides basic protection, while the premium version adds features like automatic blocking of fraud and spam calls. (claritycheck.com)
YouMail
YouMail combines voicemail, caller ID, and spam blocking. It offers visual voicemail, allowing users to view, listen to, and read voicemails at their convenience. The basic version is free, with premium plans available for additional features. (whistleout.com)
Mr. Number
Mr. Number provides reverse phone lookup services and call-blocking capabilities. It utilizes crowd-sourced data to identify telemarketers and other unwanted callers. (callwave.com)
How Does RoboKiller Compare to Other Apps?
RoboKiller stands out due to its AI-driven technology and unique "Answer Bots" feature, which not only blocks spam calls but also engages scammers, wasting their time and deterring future calls. While other apps like Truecaller and Hiya offer robust spam detection, RoboKiller's innovative approach provides an added layer of protection and user engagement.
Are There Free Options Available?
Yes, apps like Truecaller and Hiya offer free versions with basic features. However, for enhanced protection and additional features, a subscription may be required.
How Do These Apps Protect User Privacy?
RoboKiller emphasizes user privacy by not accessing or storing call content, focusing solely on metadata analysis to detect spam calls. (techradar.com) Similarly, other apps like Truecaller and Hiya have privacy policies in place, but it's essential to review each app's terms to understand how your data is used.
Conclusion
While several apps are available to block telemarketing calls, RoboKiller's AI-driven technology and unique features make it a leading choice for users seeking effective and engaging spam call protection.
Highlights:
- Say goodbye to spam calls - NordVPN launches new spam call protection, Published on Tuesday, July 29
