西子qms app for iPhone and iPad 4.0 ( 3120 ratings ) Utilities Developer: Genyi Lin Free Current version: 2.3, last update: 7 years ago First release : 28 Aug 2015 App size: 25.76 Mb 手机端进行外出打卡,工地质量处理,建立gps机制,实时跟踪反馈外出人员的情况