iCSC: Clear Sky Chart Viewer at App Store analyse

App power index: 370 (based on ranks around App Stores today)
Weather Education
Developer: Random Widgets Inc.
Price: 0 free
Current version: 1.2.5, last update: 6 years ago
First release : 21 Jun 2014
App size: 17.86 Mb
4.0 ( 8960 ratings )
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Estimation application downloads and cost

> 8.14k
Monthly downloads
~ $ 3.33k
Estimation App Cost


Choosing when and where to observe is hard. Its a pain to take out your telescope and then having to put it away when clouds quickly roll in.

Well, now you dont have to. With iCSC on your iPhone, you can easily search around for the best location, using Clear Sky Charts published by Attilla Danko.

The Clear Sky Chart, invented and maintained by Attilla Danko, shows at a glance when, in the next 48 hours, one might expect clear and dark skies for a specific observing site.

There are over 4600 charts available for North America, with data provided by Allan Rahill of the Canadian Meteorological Center. These charts provide Cloud Cover, Transparency, Seeing, Darkness, Wind, Humidity, and Temperature. Users can also enable a legend to help read the charts.

iCSC allows users to find charts by title, location, or with a map. Users can then save the charts that they use often.

While Clear Sky Charts are targeted at astronomers, anyone who wishes to look into the heavens, or needs a highly accurate sky forecast can benefit from iCSC: Clear Sky Chart Viewer.
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# Term Store county Place Priority
1 scope nights astronomy weather 2
2 weather scope 3 ⭐️⭐️
3 a sky viewer 3
4 dark sky weather free USA 6 ⭐️⭐️⭐️⭐️
5 sky viewer 12 ⭐️⭐️⭐️⭐️
6 dark sky weather 14 ⭐️⭐️⭐️⭐️
7 dark sky free 17 ⭐️⭐️⭐️⭐️
8 dark sky weather app USA 19 ⭐️⭐️⭐️⭐️
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Available in countries
Country Price
Canada free
China free
France free
Germany free
Italy free
Netherlands free
Portugal free
Spain free
Poland free
UK free
India free
Japan free
Korea, Republic Of free
Poland free
Russia free
Turkey free
USA free
Korea, Republic Of free
Ukraine free
Available for devices
iPhone4, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX, iPad75, iPad76, iPhoneXS, iPhoneXSMax, iPhoneXR, iPad812, iPad834, iPad856, iPad878, iPadMini5, iPadMini5Cellular, iPadAir3, iPadAir3Cellular, iPodTouchSeventhGen, iPhone11, iPhone11Pro, iPadSeventhGen, iPadSeventhGenCellular, iPhone11ProMax, iPhoneSESecondGen, iPadProSecondGen, iPadProSecondGenCellular, iPadProFourthGen, iPadProFourthGenCellular,