指尖极限挑战 app for iPhone and iPad 4.6 ( 3456 ratings ) Games Trivia Developer: Hi Hi Free Current version: 1.0, last update: 8 years ago First release : 18 Nov 2015 App size: 4.05 Mb 据说人类的极限速度是80毫秒。 动动指尖，你的极限速度是多少？