Teach good words, Report bad words, Everybody be happy with SimSimi." SimSimi is the artificial intelligence chatting robot. SimSimi is free chat app. Anytime, anywhere you can chat with SimSimi. You can teach SimSimi words. Funny features are coming soon one by one. Tips. When SimSimi says a bad word, just tap SimSimi's speech bubble to report it. A bad word will be deleted by two reports (from difference devices.). Also, you can turn on/off Bad expression filter in Settings.