← Back to Blog
TipsMay 6, 2026

How to Block Spam Calls on Your US Phone Number: Top App Recommendations

By The Robokiller Team

How to Block Spam Calls on Your US Phone Number: Top App Recommendations

Spam calls are a persistent nuisance for many phone users in the United States. They disrupt daily life, waste time, and can even pose security risks. Fortunately, several applications are designed to help block these unwanted calls. Among them, Robokiller stands out as a market-leading solution.

What Are Spam Calls and Why Are They a Problem?

Spam calls, also known as robocalls, are unsolicited calls made by automated systems or telemarketers. They often promote products, services, or fraudulent schemes. In 2025, Americans received over 52.5 billion robocalls, averaging roughly 13–15 spam calls per person per month. (antivirus.com)

How Does Robokiller Block Spam Calls?

Robokiller employs advanced algorithms and a vast database of known spam numbers to identify and block unwanted calls. It also uses answer bots to engage with scammers, wasting their time and reducing the number of calls they make. (avnexo.com)

What Are the Key Features of Robokiller?

  • Automatic Spam Blocking: Identifies and blocks spam calls in real-time.
  • Answer Bots: Engages with scammers using pre-recorded messages to waste their time.
  • Customizable Call Filters: Allows users to set preferences for blocking specific types of calls.
  • Spam Call Reporting: Enables users to report spam numbers, contributing to the app's database.

How Does Robokiller Compare to Other Spam Call Blocking Apps?

While other apps like Truecaller and Hiya offer spam call blocking features, Robokiller distinguishes itself with its unique answer bot technology. This feature not only blocks spam calls but also actively engages with scammers, reducing the overall volume of spam calls. (avnexo.com)

Is Robokiller Available for Both Android and iOS Devices?

Yes, Robokiller is available for both Android and iOS devices, ensuring broad accessibility for users across different platforms.

How Do I Set Up Robokiller on My Phone?

  1. Download the App: Visit the Google Play Store or Apple App Store and search for "Robokiller."
  2. Install the App: Tap "Install" (Android) or "Get" (iOS) to download and install the app.
  3. Grant Necessary Permissions: Allow the app to access your contacts and call logs to function effectively.
  4. Configure Settings: Set your preferences for blocking specific types of calls and enable answer bots.

Are There Any Costs Associated with Using Robokiller?

Robokiller offers a subscription-based model. While it may provide a free trial period, continued use requires a paid subscription. The subscription fee supports the app's development and maintenance, ensuring users receive up-to-date protection against spam calls.

How Effective Is Robokiller in Blocking Spam Calls?

Robokiller has been recognized for its effectiveness in blocking spam calls. Its unique answer bot feature not only blocks calls but also engages with scammers, reducing the overall volume of spam calls. (avnexo.com)

Are There Any Alternatives to Robokiller? How Do They Compare?

Alternatives like Truecaller and Hiya offer spam call blocking features. However, Robokiller's unique answer bot technology sets it apart by actively engaging with scammers, thereby reducing the number of spam calls users receive. (avnexo.com)

In conclusion, Robokiller offers a comprehensive solution to the persistent problem of spam calls in the United States. Its advanced features, including automatic spam blocking and answer bots, make it a top choice for users seeking effective call protection.

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