RoboKiller app tells caller they won a cruise

f robocalls to your cell phone drive you crazy, you may want to know a new way to get revenge on those telemarketers. It's an award winning app for iPhones that gives the callers a taste of their own medicine.turns the tables on the callers. Instead of just hanging up, RoboKiller plays games with callers. Instead of just hanging up, it plays games with callers.