Only the current version so far — new entries appear as the app ships updates.
香港航海學校 is an education app by School Team Technology Limited with 1,000+ downloads (about 1.6K estimated). +1 installs in the last 7 days. Released May 27, 2014. Install growth, rank history, SDKs and ad networks.
From the store listing: “本程式提供一站式即時通訊平台,令家長隨時了解子女在學校的情況,包括通告,出勤,功課等資訊。”