The Hong Kong Observatory launched a new version (5.4) of "MyObservatory" on iOS platform today (22 December 2016), featuring "Post of the Day" service.
The "Post of the Day" aims to provide weather and climate news, astronomical information, cloud photos, historical weather events, etc. Users can conveniently share the post via "MyObservatory". The "Post of the Day" messages (currently in Chinese only) will be disseminated every night. Users can receive them by enabling the notification service.
The "MyObservatory" is a free app. Users are welcome to download it in App Store.