Constella Sky
The Known Universe, Together
Free
Explore 1.8 billion real cataloged sources—no decorative stars or paywalls. Collect Sky Passport stamps, send Postcards, leave Notes in space, and become a Luminary.
Put the real sky in your hands.
Constella is a living map of more than 1.8 billion real, cataloged celestial sources. Every point of light you see is anchored to measured catalog or orbital data—not decorative filler added to make the sky look busier.
The entire experience is free. No ads. No subscription. No paywall. No “Pro” or “Plus” tier. The universe in Constella is open from the first launch.
EXPLORE THE REAL SKY
Point your iPhone or iPad toward the heavens and move through the sky around you. Find stars, constellations, planets and moons; follow comets, asteroids and real satellites; travel through time; or choose any city on Earth. Search by familiar name or catalog designation, then open an object to discover live rise and set times, photography, facts and a story worth staying for.
MAKE THE SKY YOURS
Finish an object’s story and stamp the visit in your Sky Passport. Build a personal My Sky, save favorites, watch worlds you want to return to, collect milestones and decide whether each new stamp is Public, Friends or Only Me.
SHARE WONDER, NOT NOISE
Send a friend a Sky Postcard that preserves the exact object, time and view. Leave a Note in the stars for another explorer to discover at that place in space. Give a community name to a star. Finish a Story and leave Public stamps on two days to qualify for a Luminary title, then defend it with your rolling 30-day score.
DESIGNED FOR CURIOSITY
The core sky and stories work without an account. Sign in with Apple is optional and unlocks syncing and community features. Location is optional too: use your current sky for local orientation and rise/set calculations, or choose a city instead. Motion, location and notification controls remain yours.
Constella has no advertising tracker and does not sell personal information. Community content can be reported, people can be blocked, and an account and its associated data can be deleted inside the app.
The sky is enormous. Your place in it can still feel personal.
Constella 1.1 makes the sky smoother and more reliable: steadier planet sizing while zooming, faster deep-star exploration, improved Follow, and lower heat and memory pressure while reading.
This update adds richly sourced stories for every Gaia source, a clearly labelled Gaia mission illustration, and much deeper coverage across the deep sky, stars and exoplanet systems. Tonight now includes Launch Radar, a local-time calendar of upcoming orbital launches including Starlink missions. Live satellites use modern OMM records so newly catalogued objects are not lost to the old five-digit format.
You will also find clearer satellite visibility, stronger accessibility, safer sign-in and community controls, and more resilient network and offline behavior.
The developer, QUIET EYE ADVISORS LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- QUIET EYE ADVISORS LLC
- Size
- 148.9 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Contests
Contains
Messaging and Chat
User-Generated Content
Social Media
- Copyright
- © 2026 Quiet Eye Advisors LLC