← Back to Blog
TipsMay 6, 2026

Which App is Best for Blocking Spam Calls on iOS?

By The Robokiller Team

Which App is Best for Blocking Spam Calls on iOS?

Spam calls are a persistent nuisance for iPhone users, often disrupting daily life and compromising privacy. Fortunately, several applications are designed to identify and block these unwanted calls. In this article, we'll explore the leading apps available for iOS users in the United States, highlighting their features and benefits.

What Are the Top Apps for Blocking Spam Calls on iOS?

Several applications stand out for their effectiveness in blocking spam calls on iOS devices:

  • Robokiller: Utilizing AI-powered voice detection, Robokiller blocks spam and scam calls automatically. It also offers customizable "Answer Bots" to waste scammers' time and includes spam text filtering. (avnexo.com)

  • Truecaller: Truecaller identifies unknown numbers instantly and lets you see who’s calling before you answer. It also provides real-time caller ID and spam protection. (avnexo.com)

  • Hiya: Hiya offers advanced spam detection and integrates well with carriers like AT&T and T-Mobile. It detects spoofed calls and updates spam lists automatically. (avnexo.com)

  • Nomorobo: Nomorobo blocks robocalls and telemarketers by sending them directly to voicemail. It maintains a constantly updated database of known spam numbers. (makeuseof.com)

  • YouMail: YouMail provides visual voicemail and blocks spam calls by identifying robocalls and stopping them in their tracks. It also offers features like voicemail forwarding. (whistleout.com)

How Do These Apps Work to Block Spam Calls?

These applications utilize various methods to identify and block spam calls:

  • Database Matching: They maintain extensive databases of known spam numbers and compare incoming calls against these lists.

  • Real-Time Reporting: Users can report spam numbers, which helps in updating the databases and improving detection accuracy.

  • Call Screening: Some apps use AI algorithms to analyze call patterns and detect potential spam calls.

Are There Any Built-In iOS Features to Block Spam Calls?

Yes, iOS offers a built-in feature called "Silence Unknown Callers." When enabled, this feature silences calls from numbers not in your contacts, recent calls, or Siri Suggestions. While this can reduce spam calls, it may also silence important calls from unknown numbers. (techradar.com)

How Do Carrier Services Compare to Third-Party Apps?

Major carriers in the U.S. offer their own spam call blocking services:

  • AT&T ActiveArmor: Provides spam call blocking and alerts for potential fraud.

  • T-Mobile Scam Shield: Offers scam call blocking and caller ID.

  • Verizon Call Filter: Identifies and blocks spam calls, with options for premium features.

Third-party apps like Robokiller, Truecaller, and Hiya often provide more comprehensive features, such as customizable filters and advanced spam detection algorithms. They also tend to have larger and more frequently updated databases of known spam numbers.

How Do I Set Up a Spam Call Blocking App on My iPhone?

To set up a spam call blocking app on your iPhone:

  1. Download the App: Go to the App Store and download your chosen spam call blocking app.

  2. Enable Call Blocking: After installation, navigate to Settings > Phone > Call Blocking & Identification. Here, enable the app to allow it to filter calls.

  3. Configure Settings: Open the app and follow the on-screen instructions to customize your spam call blocking preferences.

Are There Any Free Options Available?

Yes, several spam call blocking apps offer free versions with basic features:

  • Hiya: Provides free spam detection and caller ID.

  • Truecaller: Offers free caller ID and spam blocking.

  • Nomorobo: Offers a free trial period, after which a subscription is required.

While free versions can be effective, premium versions often provide additional features like advanced spam detection, customizable filters, and more frequent updates.

Conclusion

For iPhone users seeking to block spam calls, apps like Robokiller, Truecaller, and Hiya offer robust solutions with advanced features and large, frequently updated databases. While built-in iOS features and carrier services provide basic protection, third-party apps often deliver more comprehensive and customizable options to effectively manage and block spam calls.

Highlights:

Frequently Asked Questions

Related articles

Live life spam-call-free.

Robokiller blocks 99% of spam calls and texts so you can take your phone back.

Try free for 7 days