Precms app for iPhone and iPad 4.4 ( 8864 ratings ) Business Developer: Jieqi Cai Free Current version: 1.0, last update: 4 years ago First release : 26 Apr 2018 App size: 42.03 Mb Precms是基于分布式网络监控平台，实现视频观看和用户远程操控设备等一系列功能。