Haru - Astronomers' Toolkit
Haru - Astronomers' Toolkit is #126 in Weather Paid in South Korea and charting in 1 of 24 countries we track.
Updated 28 Sep 2026 · rankings refresh through the day
Developer文杰 朱
CategoryWeather
Price0.49 USD
Released
Rating★ 0.0 (0)
Version1.9.3
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Rating
0.0 ★
0 ratings
Measured
Best rank now
#126
Weather PaidMeasured
Haru - Astronomers' Toolkit on the App Store
App details
App ID
1270663271
Publisher
文杰 朱
On the store since
Jan 2018
8 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
4
EN JA ZH ZH
Size
16 MB
Also listed in
Utilities
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| South Korea | WeatherPaid | #126 |
Apps near Haru - Astronomers' Toolkit on the chart
Weather Paid, around #126.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Haru - Astronomers' Toolkit
Haru is a practical tool that every astronomy enthusiast should have. 7Timers! mainly provides weather forecasts designed for astronomical use. The forecast covers up to 3 days and includes parameters that astronomers care about, such as seeing and transparency.
In addition to the 7Timers! feature, the app also provides a variety of useful information.
Current main features include:
- 7Timers!
- East Asia satellite cloud imagery
- United States satellite cloud imagery
- Real-time solar images
- “Sun Position” Notification Center widget (fully redesigned)
- “Moon Phase” Notification Center widget (fully redesigned)
- Create and share GIF animations from satellite images and solar images (You can also convert the GIF animations into videos for sharing.)
Note: Creating GIF animations requires downloading a relatively large number of files. If you are using cellular data or a metered connection, please pay attention to data usage when viewing GIF animations.
Haru for macOS has been discontinued. Haru will be updated to a Universal App in the future. Please stay tuned.
More useful features for astronomy enthusiasts will be added in future updates. Stay tuned!
Acknowledgements:
* Thanks to Shanghai Astronomical Observatory for information service support (http://www.astron.ac.cn).
* Thanks to CWB and NOAA for providing satellite cloud imagery (http://www.cwb.gov.tw, https://www.noaa.gov).
* Thanks to SOHO for providing solar images (https://sohowww.nascom.nasa.gov).
About altitude correction for 7Timers! data:
The app automatically applies altitude correction based on the elevation of your location. If you need to override the default correction, please add a new location and manually enter the altitude. For 2 km correction, set the altitude to 2000 m. For 7 km correction, set the altitude to 7000 m.
Note: Starting from this update, Haru no longer supports iOS versions earlier than iOS 17. If you would like to continue receiving updates, please upgrade your device to the latest version of iOS.
In addition to the 7Timers! feature, the app also provides a variety of useful information.
Current main features include:
- 7Timers!
- East Asia satellite cloud imagery
- United States satellite cloud imagery
- Real-time solar images
- “Sun Position” Notification Center widget (fully redesigned)
- “Moon Phase” Notification Center widget (fully redesigned)
- Create and share GIF animations from satellite images and solar images (You can also convert the GIF animations into videos for sharing.)
Note: Creating GIF animations requires downloading a relatively large number of files. If you are using cellular data or a metered connection, please pay attention to data usage when viewing GIF animations.
Haru for macOS has been discontinued. Haru will be updated to a Universal App in the future. Please stay tuned.
More useful features for astronomy enthusiasts will be added in future updates. Stay tuned!
Acknowledgements:
* Thanks to Shanghai Astronomical Observatory for information service support (http://www.astron.ac.cn).
* Thanks to CWB and NOAA for providing satellite cloud imagery (http://www.cwb.gov.tw, https://www.noaa.gov).
* Thanks to SOHO for providing solar images (https://sohowww.nascom.nasa.gov).
About altitude correction for 7Timers! data:
The app automatically applies altitude correction based on the elevation of your location. If you need to override the default correction, please add a new location and manually enter the altitude. For 2 km correction, set the altitude to 2000 m. For 7 km correction, set the altitude to 7000 m.
Note: Starting from this update, Haru no longer supports iOS versions earlier than iOS 17. If you would like to continue receiving updates, please upgrade your device to the latest version of iOS.
Latest updates
1.9.3
What's new in this update:
1. Added all-new forecast widgets. View 7timer! forecast directly on your Home Screen without opening the app.
2. Fixed an issue where the Tab Bar did not display correctly in Dark Mode.
Recent Updates:
1. Added support for Japanese and Traditional Chinese
2. Added color-coded temperature display
3. Improved smoothing of the temperature curve
4. Optimized weather forecast layout in landscape mode on iPhone
5. Optimized weather forecast layout on large-screen iPads
6. Fixed an issue where images were forced into portrait mode on iPhone
7. Fixed an issue where images became misaligned when rotating on iPad
8. Uses a new image viewer component
9. Adds support for iOS 26
10. Newly redesigned “Sun Position” and “Moon Phase” widgets
11. Fixed am issue with 7Timers! not automatic refresh after change city.