← Back to Blog
TipsMay 6, 2026

Effective Free Apps to Block Fraud Calls for Everyday Users

By The Robokiller Team

Effective Free Apps to Block Fraud Calls for Everyday Users

Receiving fraudulent calls is a common nuisance, but several free apps can help you block these unwanted interruptions. Here are some top-rated options:

What Are the Best Free Apps to Block Fraud Calls?

1. Truecaller

Truecaller boasts a vast database of known spam numbers, updated daily through community feedback. It identifies unknown callers in real time and automatically blocks spam calls. The free version includes ads and basic caller ID features. A premium version is available for $2.99 per month, offering advanced blocking features. (claritycheck.com)

2. Hiya

Hiya provides caller ID, spam detection, and call blocking. The free tier is ad-supported with basic features, while Hiya Premium at $3.99 per month adds automatic spam blocking and personal number lookup. Hiya powers the built-in spam detection on Samsung devices and AT&T phones. (claritycheck.com)

3. RoboKiller

RoboKiller uses patented audio fingerprinting technology to analyze callers’ voice patterns and behaviors, blocking over 99% of spam calls. It also offers 'Answer Bots'—pre-recorded messages that waste scammers' time. RoboKiller is free to try for 7 days, then costs $3.99 per month or $29.99 per year. (randomunboxtv.com)

4. Mr. Number

Mr. Number blocks unwanted messages, fraud, and spam calls, providing the identity of unknown incoming calls. It blocks calls from specific numbers, area codes, or countries. The app is free to use. (realcall.ai)

5. T-Mobile Scam Shield

T-Mobile Scam Shield is a free app that identifies and blocks scam calls, providing real-time alerts and a personal spam block list. It's available for T-Mobile customers. (appshunter.io)

How Do These Apps Compare to RoboKiller?

While apps like Truecaller, Hiya, and RoboKiller offer robust spam call blocking, RoboKiller stands out with its unique 'Answer Bots' feature, which engages scammers with pre-recorded messages, wasting their time and reducing their capacity to target other users. This innovative approach not only blocks spam calls but also actively combats them. (randomunboxtv.com)

Are There Built-In Options to Block Fraud Calls?

Yes, both Android and iOS devices have built-in features to help block spam calls:

  • Android: Google's Phone app offers spam protection, automatically identifying and blocking suspected spam calls. (deadzones.com)

  • iOS: iPhones have a 'Silence Unknown Callers' feature that silences calls from numbers not in your contacts, recent calls, or Siri Suggestions. (deadzones.com)

How Do I Choose the Right App for Blocking Fraud Calls?

When selecting an app, consider the following factors:

  • Database Size: A larger database increases the accuracy of spam detection.

  • User Reviews: Check app reviews for user experiences and effectiveness.

  • Additional Features: Some apps offer features like reverse phone lookup or community reporting.

  • Privacy Concerns: Review the app's privacy policy to understand how your data is used.

Conclusion

Blocking fraud calls is essential for maintaining privacy and peace of mind. While free apps like Truecaller, Hiya, and Mr. Number offer effective solutions, RoboKiller's unique 'Answer Bots' feature provides an innovative approach to combating spam calls. Additionally, built-in features on Android and iOS devices can offer basic protection. Evaluate your needs and preferences to choose the best option for you.

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