RoboKiller vs T-Mobile Scam Shield

RoboKiller is an Android and iOS app that blocks spam calls and filters spam texts. Its call-blocking algorithm analyzes call metadata in less than a millisecond and blocks calls it identifies as spam before they reach the phone. Audio fingerprinting compares robocall recordings against a database of more than 1.5 billion processed phone numbers and millions of audio fingerprints. RoboKiller says its technology is 99% effective at stopping spam calls. Text filtering uses block and allow lists, number reputation, and content analysis; the company says messages are never stored or shared. The free version includes a daily-updated blacklist, blocked-call notifications, weekly insights, spam reporting, and Spam Patrol. Answer Bots, Call Screening, and Personal Data Protection require a paid plan. Answer Bots play prerecorded messages to spam callers, while Call Screening asks unknown callers for their name and reason for calling. Both features require a carrier and plan that support Conditional Call Forwarding. Listed paid options include $4.99 a month, $31.99 a year, and $39.99 a year; a 7-day trial is also listed.

T-Mobile Scam Shield provides call, text, and web protections for customers on T-Mobile’s network. Incoming calls T-Mobile identifies as likely scams can be labeled Scam Likely, helping customers decide whether to answer or block them. Scam Block can automatically block those calls and can be disabled at any time. Included anti-spam protection covers SMS and MMS, while Safe Web Browsing helps block known malicious or dangerous sites on supported devices and experiences. Calling a number on the Scam Likely list triggers an audible warning through Callback Protection. Network protections work automatically without the app; customers can manage ScamShield in T-Life, turn on Scam Block by dialing #662#, or use My T-Mobile or the T-Mobile app. ScamShield is available for Android and iOS. The free plan is free at no extra cost for T-Mobile customers with qualifying service and a capable device. ScamShield Premium is $4 a month per line and adds categorized call types sent to voicemail, reverse number lookup, and automatic voicemail transcription by text.