RoboKiller is an Android and iOS app for blocking spam calls and filtering SMS and MMS. Its predictive algorithm analyzes call metadata in less than a millisecond, while audio fingerprinting compares robocall recordings with 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. Unknown callers can be asked for their name and reason for calling, and Answer Bots can respond to spam calls with prerecorded messages. Text filtering uses block and allow lists, number reputation, and content analysis; RoboKiller says messages are never stored or shared. The free plan 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. Listed paid options are 4.99 USD per month, 31.99 USD per year, and 39.99 USD per year; a 7-day trial is also listed.
Who it is for
RoboKiller suits iPhone and Android users who want to filter spam calls and texts. Answer Bots and Call Screening require a carrier and plan that support Conditional Call Forwarding.
What is good
- Blocks calls identified as spam before they reach the phone.
- Filters SMS and MMS using several signals.
- Free plan includes spam reporting and Spam Patrol.
- Offers call screening and prerecorded Answer Bots.
What to know first
- Does not work on landlines or other devices.
- Several call features require a paid plan.
- Answer Bots and Call Screening need supported call forwarding.
Verdict
RoboKiller combines call blocking, text filtering, caller screening, and spam-call responses in a mobile app. Its free plan covers core blocking tools, while some features require a paid plan and supported carrier forwarding.
RoboKiller plans and pricing
All plansCompared on spam call blocking apps
- Free plan
- Yes
- Robocall blocking
- Yes
- Caller ID
- Yes
- Call screening
- Yes
- Community reports
- Yes
- Supported platforms
- both
