StarLens: Star & Planet Finder
Masakazu Yamada Education iPhoneiPadiPod touch
StarLens: Star & Planet Finder is a free Education app for iPhone and iPad by Masakazu Yamada. Requires iOS 16.0. Updated October 17, 2026.
- Price
- Free
- on the App Store
- Size
- 2 MB
- Age 4+
- Updated
- Oct 17
- 2026 · v1.0.3
Screenshots
About StarLens: Star & Planet Finder
"What's that bright star?" Hold your iPhone up to the night sky and StarLens will tell you. StarLens reads the pattern of the real stars your camera sees to work out exactly where you're looking — so star and constellation names land right on the stars on your screen. WHAT YOU CAN DO • See the names of stars, constellations, planets and the Moon over the live camera view • Tap a name for a simple explanation of what it is • Pick the Moon or a planet from "Tonight's sky" and an arrow guides you to it • See when a meteor shower peaks and the best hours to watch, with an arrow to its radiant • Horizon and compass directions, planet rise/set times, star colors and distances • Take a photo of the sky with the names on it and share it with friends • Red night mode that protects your dark-adapted eyes • Works completely offline — perfect for remote dark-sky sites with no signal • Demo mode to try it indoors or in daylight • 15 languages, including English, Japanese, Chinese, Korean, German, French, Spanish and Portuguese GREAT FOR • Finding out what you're looking at under a starry sky • Exploring the constellations with family and friends • Showing the sky to newcomers at star parties FOR ENTHUSIASTS StarLens plate-solves every frame against a catalog of about 5,000 stars, so labels never drift the way compass-only sky apps do. The catalog and solver are built in and need no internet connection, so it works just the same at a remote observing site with no signal. It also has a star-field auto-exposure, gyro-stabilized tracking, and an optional technical readout (coordinates, exposure, matched stars). PRIVACY Camera images and your location are processed only on your iPhone and never sent anywhere. No account, no ads. TIPS • The less city light and moonlight, the more stars it recognizes • Hold still for a moment to catch fainter stars
What’s new
Version 1.0.3 · Updated October 17, 2026
- Meteor showers: "Tonight's sky" shows the peak, the best hours and the moonlight, and an arrow guides you to the radiant, with tips on how to watch. You can also find showers by name - Better star recognition in city skies where only a few bright stars show - Press and hold the screen to hide names and lines and compare with the real stars - The bottom buttons now have captions - Names line up more precisely when directions come from the Sun or the Moon - On mountains and other high places, sunrise and sunset times come with a note - Supports iOS 16 (iPhone 8, 8 Plus and X) - Bug fixes and stability improvements
App privacy
The developer, Masakazu Yamada, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to StarLens: Star & Planet Finder
Looking for apps like StarLens: Star & Planet Finder? Here are 6 similar apps on the App Store.
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Moon Atlas: Lunar Field Guide
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StellaNavigator
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Astrarium
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Meteorium — Meteor Dust Trails
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NGC RedVox: Audio Sky Atlas
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StarBook Wireless
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| StarLens: Star & Planet Finder | – | Free | October 17, 2026 | |
| Moon Atlas: Lunar Field Guide | – | Free | Oct 18, 2026 | Compare |
| StellaNavigator | – | Free | Oct 20, 2026 | Compare |
| Astrarium | – | Free | Oct 22, 2026 | Compare |
| Meteorium — Meteor Dust Trails | – | Free | Aug 26, 2026 | Compare |
| NGC RedVox: Audio Sky Atlas | – | Free | Oct 21, 2026 | Compare |
| StarBook Wireless | – | Free | Oct 14, 2026 | Compare |