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Best iCSC alternatives: apps like iCSC: Clear Sky Chart Viewer

10+ similar apps compared and reviewed

4.5 avg rating
8 free apps
Updated October 2026
iCSC: Clear Sky Chart Viewer
๐Ÿ“š Education
โ˜€๏ธ Weather

iCSC is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to iCSC

Xasteria: Astronomy Weather#1

Xasteria: Astronomy Weather by Dimitrios Kechagias

Astro Forecast - 7Timer
Editor's Choice
โ˜€๏ธ Weather
4.7๐Ÿ˜Š(59 ratings)
Free
Xasteria: Astronomy Weather screenshot 1
Xasteria: Astronomy Weather screenshot 2
Xasteria: Astronomy Weather screenshot 3
Xasteria: Astronomy Weather screenshot 4
Xasteria: Astronomy Weather screenshot 5
Xasteria: Astronomy Weather screenshot 6

Access detailed astronomical weather forecasts worldwide, including cloud cover, seeing, and transparency. Integrates with popular weather resources and shows satellite and ISS passes for your location. Offers multiple visualization modes for data.

What We Love

  • ๐Ÿ‘ Easy to use
  • ๐ŸŒŸ Accurate forecasts
  • ๐Ÿ”ญ Great for astronomy
  • ๐Ÿ’ฐ Free and useful
  • ๐Ÿ’ก Integrates multiple sources
  • โœจ Clean interface
  • ๐Ÿš€ Responsive developers
  • ๐ŸŽฏ Helpful for planning

Room to Improve

  • ๐Ÿ› Scaling issues on iPhone
  • ๐Ÿ› App rarely updates
  • ๐Ÿ› Crashes constantly
  • ๐Ÿ› Default language issues
  • ๐Ÿ› Visual accessibility concerns
  • ๐Ÿ› Inaccurate for some locations
Good To Stargaze#2

Good To Stargaze by Matthew LLOYD

Strong Contender
โ˜€๏ธ Weather
4.4๐Ÿ˜ž(217 ratings)
FreeIn-App Purchases
Good To Stargaze screenshot 1
Good To Stargaze screenshot 2
Good To Stargaze screenshot 3
Good To Stargaze screenshot 4
Good To Stargaze screenshot 5

This app provides a comprehensive tool to determine the best times for stargazing. It offers detailed forecasts for weather, seeing conditions, transparency, and light pollution. Ideal for both amateur and professional astronomers using any viewing equipment.

What We Love

  • ๐Ÿ‘ Accurate for planning viewing nights
  • ๐Ÿ‘ Useful for astronomers
  • ๐Ÿ‘ Good for finding right conditions
  • ๐Ÿ‘ Reliable forecast
  • ๐Ÿ‘ Clean, organized interface

Room to Improve

  • ๐Ÿ˜ž Expensive subscription model
  • ๐Ÿ˜ž Pessimistic predictions
  • ๐Ÿ˜ž Free features removed
  • ๐Ÿ˜ž Unusable without payment
  • ๐Ÿ˜ž Inaccurate forecasts
  • ๐Ÿ˜ž Poor accuracy for cloud cover
  • ๐Ÿ˜ž App is a buggy site wrapper
  • ๐Ÿ˜ž Data for other locations
  • ๐Ÿ˜ž Subscription required for current location
  • ๐Ÿ˜ž Hidden subscription fees
  • ๐Ÿ˜ž Not bang for your buck
  • ๐Ÿ˜ž Outdated data
  • ๐Ÿ˜ž Poor translation
  • ๐Ÿ˜ž Price is exaggerated
  • ๐Ÿ˜ž Monetization focused
  • ๐Ÿ˜ž No longer supported on iOS
  • ๐Ÿ˜ž Weather forecast is off
  • ๐Ÿ˜ž App is SUPER slow to load
  • ๐Ÿ˜ž Refuse to pay for subscription
Astrospheric#3

Astrospheric by Daniel Fiordalis

Astronomy Weather Forecast
Worth Considering
โ˜€๏ธ Weather
4.8๐Ÿ˜Š(453 ratings)
FreeIn-App Purchases
#52in Weather
Astrospheric screenshot 1
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Astrospheric screenshot 5
Astrospheric screenshot 6

This app offers advanced weather forecasting and astronomical data for stargazers and astrophotographers. It provides detailed hourly forecasts, cloud and sky transparency reports, and alerts for celestial events. It also includes tools for astronomical societies and offline site setup.

What We Love

  • ๐Ÿš€ Precision tool for astrophotography
  • ๐Ÿ” Detailed weather forecasts
  • โญ Accurate and reliable
  • ๐Ÿ’ป Comprehensive data and features
  • ๐Ÿ“Š Helpful for planning observing sessions

Room to Improve

  • ๐Ÿ› Occasional inaccurate forecasts
  • ๐Ÿ” Missing some weather data (e.g. wind)
  • ๐Ÿ’ฐ Subscription required for full functionality
  • ๐Ÿ”Œ Compatibility issues on some devices

More apps like iCSC

4
Light Pollution Map - Dark Sky
Light Pollution Map - Dark Sky
Light Pollution Map - Dark Sky
Astronomy tools & more
Free

Discover optimal locations for stargazing and astrophotography with a detailed light pollution map. Get real-time alerts for celestial events like meteor showers and auroras, track the ISS, and access daily astronomy photos. Enhance your night sky observations with comprehensive tools and information.

Interactive light pollution mapAurora borealis live map and alertsMeteor shower and super moon alerts
โ˜€๏ธ Weather
(239)
free with in-app purchases
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5
Scope Nights Astronomy Weather
Scope Nights Astronomy Weather
Scope Nights Astronomy Weather
Custom Stargazing Forecasts
$6.99

This app provides custom forecasts for stargazing, helping astronomers and astrophotographers find the clearest, darkest skies. It analyzes weather data to show optimal observing times and locations, including light pollution maps and dark sky site information.

Custom stargazing forecastsSmart observing ratingsLight pollution map
โ˜€๏ธ Weather
(770)
paid
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6
Astroweather - astronomy tools
Astroweather - astronomy tools
Astroweather - astronomy tools
Toolkit for stargazing
Free

This app provides specialized weather forecasts for astronomical observation. It includes astronomical event predictions, light pollution maps, and satellite imagery. Users can also track rise and set times for celestial bodies.

Astronomical weather forecastsSunset/sunrise and moonrise/moonset displayAstronomical event forecast
โ˜€๏ธ Weather
(9)
free with in-app purchases
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7
Xasteria Plus - Astro Weather
Xasteria Plus - Astro Weather
Xasteria Plus - Astro Weather
Forecasts for stargazers
$1.99

This app provides detailed weather forecasts and tools specifically for stargazers. It integrates multiple weather sources and offers specialized features like night-vision mode and lunar calendars. Access real-time astronomical data and satellite imagery to plan your celestial observations.

Multiple weather source integration (Apple Weather, MET Norway)Night-vision mode with dimmerLunar calendar with Sun/Moon graphs
โ˜€๏ธ Weather
(35)
paid
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8
Cloud Map
Cloud Map
Cloud Map
by nรกhodnรฝ
Free

Access satellite imagery from over 120 NOAA weather stations to view cloud cover. Utilize GPS to locate nearby stations or save favorites for quick access. View current conditions on Apple Watch.

120+ NOAA weather station satellite imagesVisible cloud cover viewGPS for nearest station
โ˜€๏ธ Weather
(0)
free with in-app purchases
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9
Amazing Aurora
Amazing Aurora
Amazing Aurora
by Sharp Rock Ventures LLC
Free

This app helps you find the best times and locations to see the aurora borealis. It provides solar wind and sun/moon data, forecasts, and allows users to report sightings. Enhanced features are available with a subscription.

Solar wind and sun/moon dataAurora borealis forecastsUser aurora sighting reports
โ˜€๏ธ Weather
(25)
free with in-app purchases
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10
Stargazing Hub - Sky Live
Stargazing Hub - Sky Live
Stargazing Hub - Sky Live
Star Map & Sky Recognition
Free

Explore the night sky with AR star maps, observation forecasts, and image recognition. Identify celestial objects, track satellites, and access environmental data for optimal stargazing. Includes tools for astrophotography and a gallery for inspiration.

AR star map with real-time celestial positionsSky image recognition for object identificationStargazing index and observation forecasts
โ˜€๏ธ Weather
(44)
free with in-app purchases
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