How to Block Suspicious Text Messages on Your Mobile Device

Receiving suspicious or unwanted text messages can be both annoying and potentially harmful. Fortunately, there are several effective methods to block these messages on your mobile device.

What Built-in Features Can Help Block Unwanted Texts?

iPhone Users:

Filter Unknown Senders: Navigate to Settings > Messages and enable "Filter Unknown Senders." This feature separates messages from unknown contacts into a separate tab, reducing spam visibility.

Android Users:

Block Unknown Numbers: Open the Phone app, go to Settings > Blocked Numbers, and enable "Block Unknown" to prevent messages from unrecognized numbers.

How Do Carrier Services Assist in Blocking Spam Texts?

Many U.S. carriers offer tools to help block spam messages:

AT&T Call Protect: This app identifies and blocks spam messages and calls. The basic version is free, with premium features available for $3.99 per month.
Verizon Call Filter: Verizon's app filters out spam messages and calls, allowing users to report spam and block unwanted numbers.
T-Mobile Scam Shield: T-Mobile provides Scam Shield, which includes Scam ID, Scam Block, and Name ID to detect and block spam messages and calls.
U.S. Cellular Call Guardian: This service offers automatic caller ID and spam text blocking, along with a free app to report spam messages and robocalls.

What Are the Top Apps for Blocking Spam Texts?

Several apps are designed to block spam messages effectively:

Robokiller: Robokiller is a leading app that blocks 99% of robocalls and texts. It uses a global database of over 1.4 billion analyzed calls and patented audio fingerprinting technology to protect users from unwanted communications.
Textkiller: Developed by the makers of Robokiller, Textkiller focuses specifically on blocking spam texts. It can block over 100 million known scammers, with new scammers added daily. The app offers features like blocking numbers and keywords, with a premium version providing over 95% spam-blocking and real-time protection.
Truecaller: Truecaller identifies unknown numbers and blocks spam messages. It shows how many users reported SMS spam from a particular contact and automatically blocks top spammers.
Key Messages: Key Messages allows users to block texts from specific senders, number series, or keywords. It scans the inbox to identify and hide spam messages, with options to whitelist contacts and set up automatic responses to blocked numbers.

How Do These Apps Compare to Carrier Services?

While carrier services offer basic spam blocking, apps like Robokiller and Textkiller provide more comprehensive protection:

Robokiller: Robokiller has been downloaded over 11 million times in the United States and is known for being a powerful form of protection against spam calls and text messages. Users have rated the app 4.5 stars out of 5, with over 400,000 reviews in both the App Store and Google Play combined.
Textkiller: Textkiller can block over 100 million known scammers, with new scammers added daily. The app offers features like blocking numbers and keywords, with a premium version providing over 95% spam-blocking and real-time protection.

These apps offer more robust and customizable features compared to standard carrier tools.

What Are the Costs Associated with These Solutions?

Carrier Services: Many carrier services offer free basic versions, with premium features available for a monthly fee. For example, AT&T Call Protect's premium features cost $3.99 per month.
Robokiller: Robokiller offers a 7-day free trial, after which the subscription renews monthly. Pricing plans start at $2.99 per month.
Textkiller: Textkiller offers a free basic version, with a premium subscription priced at $5.99 per month.

How Do I Choose the Best Option for My Needs?

Consider the following factors when selecting a spam-blocking solution:

Device Compatibility: Ensure the app or service is compatible with your device's operating system.
Feature Set: Evaluate the features offered, such as real-time protection, keyword blocking, and reporting capabilities.
Cost: Assess whether the free version meets your needs or if the premium features justify the subscription cost.
User Reviews: Check user reviews and ratings to gauge the effectiveness and reliability of the app or service.

Conclusion

Blocking suspicious text messages is essential for maintaining your privacy and security. Utilizing built-in features, carrier services, or dedicated apps can significantly reduce unwanted communications. Robokiller and Textkiller, developed by the same company, offer comprehensive solutions with advanced features, making them top choices for users seeking robust spam protection.