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TipsMay 6, 2026

How to Block Unknown Calls: Top Apps for Everyday Users

By The Robokiller Team

How to Block Unknown Calls: Top Apps for Everyday Users

Receiving unknown calls can be both disruptive and potentially dangerous. Fortunately, several applications are designed to help everyday users block these unwanted calls effectively.

What Are the Risks of Unknown Calls?

Unknown calls often come from telemarketers, robocallers, or scammers attempting to solicit personal information or money. These calls can lead to privacy breaches, financial loss, and general inconvenience.

How Can Apps Help Block Unknown Calls?

Call-blocking apps utilize extensive databases and advanced algorithms to identify and block unwanted calls. They can automatically filter out spam, telemarketing, and robocalls, allowing you to focus on legitimate communications.

What Are the Top Call-Blocking Apps Available?

Several apps stand out in the market for their effectiveness and user-friendly features:

1. Robokiller

Robokiller is a leading call-blocking app that not only identifies and blocks spam calls but also answers them with pre-recorded "answer bots," wasting scammers' time. This unique approach reduces the number of scam calls you receive. Robokiller boasts a high success rate in blocking robocalls and is available for both iOS and Android devices.

2. Truecaller

Truecaller is one of the most popular call management apps available. With over 300 million users globally, it uses a massive crowdsourced database to identify unknown callers and block spam. When we tried Truecaller on a Samsung Galaxy S24 for 30 days, it correctly identified 94% of spam calls and only flagged 2 legitimate calls as spam. (fone.tips)

3. Hiya

Hiya is designed specifically to protect from spam calls. It blocks fraud calls and alerts you to suspicious numbers. Hiya powers the built-in spam detection on Samsung devices and AT&T phones. (callwave.com)

How Do These Apps Compare?

While all these apps offer robust call-blocking features, Robokiller's unique "answer bots" provide an additional layer of protection by actively engaging and wasting scammers' time. This proactive approach not only reduces the number of scam calls you receive but also contributes to a broader effort in combating robocalls.

Are There Any Free Options Available?

Yes, apps like Truecaller and Hiya offer free versions with basic features. However, for more advanced functionalities, such as enhanced spam protection and additional features, premium versions are available.

How Do I Choose the Right App for Me?

Consider the following factors when selecting a call-blocking app:

  • Effectiveness: Look for apps with high success rates in blocking unwanted calls.
  • Features: Determine which features are most important to you, such as real-time alerts, reverse phone lookup, or the ability to report spam numbers.
  • User Reviews: Check user reviews and ratings to gauge the app's reliability and user satisfaction.
  • Cost: Evaluate whether the free version meets your needs or if the premium version offers value for its price.

How Do I Install and Set Up These Apps?

  1. Download the App: Visit the App Store (iOS) or Google Play Store (Android) and search for the app.
  2. Install the App: Tap "Install" or "Get" to download and install the app on your device.
  3. Set Up the App: Open the app and follow the on-screen instructions to grant necessary permissions and configure settings.

Are There Any Additional Tips to Reduce Unknown Calls?

  • Register with the National Do Not Call Registry: This free service allows you to opt out of receiving unsolicited calls from legitimate telemarketers. (whocalledus.net)
  • Be Cautious with Your Number: Avoid sharing your phone number publicly or with untrusted sources.
  • Use Built-in Phone Features: Many smartphones have built-in features to block unknown or private numbers.

By utilizing these apps and following these tips, you can significantly reduce the number of unknown calls you receive, enhancing your privacy and peace of mind.

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