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Screenshots

  • SkyChecker screenshot 1
  • SkyChecker screenshot 2
  • SkyChecker screenshot 3
  • SkyChecker screenshot 4

About SkyChecker

Discover whaDiscover what's visible in the night sky tonight — right from your backyard. SkyChecker uses NASA's Jet Propulsion Laboratory data to show you exactly which celestial objects are visible from your location. No guesswork, no complicated star charts — just a simple list of what you can see and when. WHAT YOU CAN TRACK • The Moon with current phase and illumination percentage • All planets from Mercury to Neptune • Deep sky objects: Andromeda Galaxy, Orion Nebula, Pleiades, and more • International Space Station (ISS) passes • Meteor shower alerts with peak times and hourly rates WEATHER INTEGRATION • Live cloud cover and visibility conditions • Observation quality rating (1-5 stars) • Detailed weather breakdown: humidity, wind, cloud layers • Tips for optimal viewing based on current conditions PLANNING TOOLS • Equipment difficulty ratings (Naked Eye, Binoculars, Telescope) • Rise, set, and peak viewing times with compass directions • Date picker to plan future observing sessions • Share tonight's sky with friends and family POWERFUL FEATURES • Automatic GPS location detection • Manual coordinate entry for precise locations • Smart caching for fast app launch • Elegant retro terminal-style interface with ASCII art HOW IT WORKS SkyChecker connects to NASA's Horizons Ephemeris System — the same data source used by professional astronomers — to calculate precise positions for celestial objects based on your exact location and time zone. Weather data comes from Open-Meteo, providing real-time cloud cover, visibility, and atmospheric conditions to help you plan the perfect observing session. PERFECT FOR • Casual stargazers curious about tonight's sky • Amateur astronomers planning observation sessions • Educators teaching astronomy concepts • Anyone who's ever looked up and wondered "what's that?" PRIVACY FOCUSED Your location stays on your device. We don't track you, collect personal data, or show ads. The only external connections are to NASA's public astronomical database and Open-Meteo weather service. Clear skies!

What’s new

Version 1.2 · Updated March 5, 2026

BUG FIXES • Fixed calculations for polar regions and extreme latitudes • Fixed midnight sun and polar night handling • Improved accuracy for celestial object visibility near the poles

App privacy

The developer, ANDREW DAVID CHAMBERLAIN, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to SkyChecker

Looking for apps like SkyChecker? Here are 6 similar apps on the App Store. The highest rated is StarWizard: Astronomy Sky Map (4.9/5), and all 6 are free to download.

SkyChecker vs. alternatives
App Rating Price Last updated Compare
SkyChecker 5.0 / 5 (2 ratings) Free March 5, 2026
StarWizard: Astronomy Sky Map 4.9 / 5 (8) Free Oct 17, 2026 Compare
ASGuide 4.8 / 5 (9) Free Oct 6, 2026 Compare
Satellite Tracker / Radar 4.4 / 5 (31) Free Aug 17, 2026 Compare
Universe Star Finder 4.1 / 5 (27) Free Oct 19, 2026 Compare
OSR Star Finder 4.6 / 5 (4,840) Free Jan 26, 2026 Compare
Stargazing: Stars & Planets 4.3 / 5 (1,131) Free Aug 17, 2026 Compare

Compare SkyChecker with the top alternatives: ratings, updates, ASO score and keyword gaps →