Comparison

MyObservatory vs 知天气

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MyObservatory

Access real-time weather data, including temperature, humidity, and wind conditions. View weather photos from nearby stations and receive timely updates on rainfall. Get alerts for weather warnings and special tips.

Highlights
  • Current weather conditions
  • Weather photos from stations
  • Rainfall data updates
  • Weather warning notifications
  • Location-based rain forecast
  • Customizable location settings
Features
Read full description

The “MyObservatory” is a highly popular weather app providing personalized weather services. The app provides current weather including temperature, relative humidity, rainfall, wind direction and speed, as well as weather photograph collected from nearby weather stations at user's location, specified location, or selected weather stations. Weather photos and rainfall data will be updated at 5-minute and 15-minute intervals respectively. Other data will be updated in 10-minute interval and the update time will be displayed at the bottom of the front page. Points to note: 1. The notification service of weather warnings, Special Weather Tips, and Location-based Rain Forecast is provided through the Apple Push Notification service (APNs). The Hong Kong Observatory cannot guarantee the reception of the above notifications by users. Users should not rely on the mobile app as the only means for reception of important weather information. Depending on factors such as network usage and quality of user's mobile phone connection, it may take 5 to 20 minutes or even longer for the app to receive the notification after it is issued by the Hong Kong Observatory. 2. Use of Location-based Rain Forecast notification will increase the battery usage and data download slightly. Users who wish to save battery usage of the app may enable the notification function in rainy days and before outdoor activities, and disable the function in sunny days and after finishing the outdoor activities. Meanwhile, selecting options of less frequent update and lower position accuracy in the advanced settings of the notification function may also save battery usage. 3. Although the “MyObservatory” is a free app, user will be charged by their mobile network service provider on the use of data service. These charges can become very expensive on roaming. Please ensure that the option of “Data Roaming” have been disabled in the settings of your mobile devices. 4. In the "My Location Settings", users can opt for using the automatic location service provided by the smartphone, or designating "My Location" on the map themselves. This location will be displayed on the main page and in "My Weather Report". If your location cannot be found, "My Location" will show the last location which was successfully found or "Hong Kong Observatory". The meteorological data displayed on "My Location" or the station you added is provided by meteorological stations nearby, and is not necessarily from a station in the same region. In case meteorological data is not available from nearby stations, data from other meteorological stations at headquarter of the Observatory, King's Park, and Star Ferry will be used instead. If this is the case, the symbol ▲ will appear to the left of the updated time. 5. The location displayed in the function of "My Weather Report" is provided by third party provider. 6. Because of the variation in both the terrian and height of where the weather stations located, and the variation of your location estimated by the mobile phone, users be noted that there would be difference between the actual situation and the weather information shown on "MyObservatory." 7. The clock on the main page of the app is displayed with HKT synchronizing automatically to the Observatory's Internet Time Server, and may not be the same as the time displayed on the smartphone. 8. The app provides link for users to browse the Observatory's Facebook Page. Users may choose to log in his/her own Facebook account. More features of Facebook can be used after logging in. Please be reminded to pay attention to the notes of the Facebook Page, and the privacy policies of the Facebook platform.

About

知天气

Features
Read full description

产品功能: 1、权威发布福建省1700多个乡镇/街道级天气预报、天气实况和逐小时预报数据,地图查询更精准,省内区域任你点;生活指数也个性,小小卡片显温馨; 2、属地化、实时化发布福建省内省、市、县级气象预警信息,贴心实用的防御指南,个性设置你关注的气象预警级别;3、气象产品更丰富更领先,气象雷达、卫星云图、台风路径、数值预报、交通气象、天气综述、整点实况趋势图、海洋天气等,气象专业人员移动智能办公更自如;支持个性设置气象产品; 4、气象服务:为全省各地政府部门和各行业单位决策提供给参考、协助防灾减灾组织工作,服务社会民生、助力经济建设; 5、2800多个国内亲情城市天气预报,实时关心你爱的人、分分钟送去暖心问候; 6、全国城市的空气质量排行榜信息,实时查询各地市空气详细监测报告; 7、丰富的气象科普与生活资讯,关注气象科学,全方位了解气象影响与动态信息。 8、全国800多个旅游景点,便捷查询目的地未来一周天气预报,绸缪在胸,说走就走,让你旅途无忧。 9、日历中心新增备忘录功能,小功能缓解压力,工作生活更轻松。 10、随手抓拍现场天气实景,选择天气状况、发表个人意见,提交观察报告,预报准不准,有图有真相。

Screenshots

MyObservatory4 screens
知天气4 screens

Verdict

The call

The clearest difference is rating: 知天气 at 4.3 against MyObservatory's 3.1. 知天气 also leads on review sentiment (80% vs 40%) and iOS requirement (11.0 vs 15.0). MyObservatory's advantage is update cadence (monthly vs every 2 months) and ratings volume (32 vs 3). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

知天气 holds the better App Store score, 4.3 against 3.1. That said, the two scores are not equally well evidenced: MyObservatory has 32 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 40% of MyObservatory's written reviews are positive against 80% of 知天气's.

UpkeepUpdate frequency

MyObservatory ships an update monthly, 知天气 every 2 months. Both last shipped on November 10, 2026.

Scorecard6 real differences · 4 level
MyObservatory versus 知天气: the parameters behind the verdict, then further details
ParameterMyObservatory知天气
PriceFreeFree
Rating3.1 (32 ratings)4.3 (3 ratings) — better
Positive reviews39.8% of reviews80.0% of reviews — better
Number of ratings32 — better3
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size253 MB137 MB
Age rating4+4+
DeveloperHong Kong Observatory炳阳 林

Customer experience

MyObservatory

All ratings32 ratings
Positive50.0%
Neutral6.3%
Negative43.8%
Written reviews201 reviews
Positive39.8%
Neutral18.4%
Negative41.8%

知天气

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews25 reviews
Positive80.0%
Neutral8.0%
Negative12.0%

In-app purchases

None

MyObservatory

No in-app purchases

None

知天气

No in-app purchases

Questions

Is MyObservatory free?
MyObservatory is free to download, with no in-app purchases.
Is 知天气 free?
知天气 is free to download, with no in-app purchases.
Which has better reviews, MyObservatory or 知天气?
知天气 is rated higher. MyObservatory averages 3.1 out of 5 from 32 ratings, while 知天气 averages 4.3 from 3 ratings.
Do MyObservatory or 知天气 have ads?
Neither MyObservatory nor 知天气 shows ads.
Which is updated more often, MyObservatory or 知天气?
MyObservatory ships an update monthly, and 知天气 every 2 months. Most recently, MyObservatory was updated on November 10, 2026 and 知天气 on November 10, 2026.

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