Scam calls are a persistent nuisance, with Americans receiving over 52.5 billion robocalls in 2025, averaging 13–15 spam calls per person each month. (antivirus.com) To combat this, several free apps offer robust protection against unwanted calls without requiring constant maintenance.
What Are the Best Free Apps to Block Scam Calls?
1. Google Phone App (Android Only)
For Android users, the Google Phone app provides built-in spam protection. It automatically identifies and blocks suspected spam calls, offering a seamless experience without additional installations. (whocalledus.net)
2. iOS Built-In Features (iPhone Only)
iPhone users can utilize native features like "Silence Unknown Callers," which silences calls from numbers not in your contacts, and SMS filtering to categorize messages into "Transactions," "Promotions," and "Junk." (deadzones.com)
3. Hiya
Hiya offers real-time spam detection and call blocking across both Android and iOS platforms. Its free version provides caller ID and spam alerts, leveraging a collaborative database of recognized spam numbers. (antivirus.com)
4. Truecaller
Truecaller identifies and blocks spam calls and texts using a vast, crowdsourced database. It also offers caller ID and smart SMS filtering. The free version includes basic call blocking and spam identification. (consumersearch.com)
5. Mr. Number
Mr. Number effectively halts robocalls and spam calls, allowing users to block specific numbers. It utilizes a collaborative database to identify and block unwanted calls. (antivirus.com)
How Do These Apps Work?
These applications utilize extensive databases of known spam numbers and advanced algorithms to identify and block unwanted calls. They often allow users to report new spam numbers, contributing to the community-driven effort to enhance call blocking accuracy.
Are There Any Drawbacks to Using These Apps?
While these apps are effective, some may display ads in their free versions or offer limited features compared to their premium counterparts. Additionally, the accuracy of spam detection can vary, and no app can guarantee 100% protection against all scam calls.
How Do These Apps Compare to Robokiller?
Robokiller is a paid solution that employs diverse methods, including blacklisting, whitelisting, and identification, to prevent robocalls and spam calls. Beyond call blocking, it offers versatile features like call screening, forwarding, and voicemail transcription. (antivirus.com) In contrast, the free apps mentioned above provide basic call blocking and spam identification without the additional features and may require more manual maintenance.
Conclusion
For users seeking free solutions to block scam calls without constant maintenance, the Google Phone app for Android and iOS built-in features for iPhone are excellent starting points. Third-party apps like Hiya, Truecaller, and Mr. Number also offer effective protection. However, for comprehensive features and enhanced protection, considering a paid solution like Robokiller may be worthwhile.
Highlights:
- Say goodbye to spam calls - NordVPN launches new spam call protection, Published on Tuesday, July 29
