Point and know
Raise your phone and COSM reads the sky through the camera, labelling stars, planets and deep-sky objects the instant they enter the frame.
Private beta · iOS & Android
The night sky, finally named.
Point your phone up. COSM names every star, planet and constellation in real time — no charts, no jargon, no light pollution excuses. We're opening the first orbit of early access.
- 9,400+ objects in the catalog
- Offline sky, works anywhere
- 4.9★ from the closed alpha
Why COSM
Stargazing without the homework
Three things every clear night should be — effortless, planned, and impossible to miss.
Plan the perfect night
See exactly when Saturn clears the rooftops or the ISS streaks over your street, with rise, peak and set times tuned to where you stand.
Never miss the rare ones
A meteor shower, a lunar eclipse, a comet swinging close — COSM nudges you the moment it becomes visible from your location.
How it works
From inbox to the stars in three taps
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Claim your spot
Drop your email above. You get a place in line and a one-time invite when your orbit opens — no account, no card.
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Install in seconds
On launch day, tap the invite, install on iOS or Android, and grant the compass. COSM calibrates to your exact sky.
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Look up
Hold your phone toward anything bright. COSM names it, tells you when it peaks, and saves it to your night log.
Inside the app
Built to be read in the dark
Big legible type, a red-shifted night mode, and only the controls you need with cold hands. Everything else gets out of the way of the sky.
- Real-time identification through the camera
- Offline sky atlas — no signal needed
- Object detail: altitude, azimuth, magnitude
- A night log that remembers what you saw
Join the orbit
Join 12,847 stargazers on the waitlist
The first orbit gets lifetime Pro, a founder badge in the app, and a say in what we build next.
Save my spotQuestions
Before you join
Is COSM free?
The core app is free forever. Pro adds the night log, custom alerts and the offline atlas — and everyone on this waitlist gets Pro at no cost for life.
When does early access open?
We open the first orbit this season, in waves. Your place in line decides your invite date; joining now puts you near the front.
Does it need internet to work?
No. Once installed, the sky atlas and identification run fully offline — handy on a dark mountainside with no signal.
Which phones are supported?
Any iPhone or Android device with a compass and gyroscope from the last few years. The camera-overlay mode needs a rear camera, which is nearly universal.
What do you do with my email?
We send one launch email and your invite. Nothing else, never sold, and one tap unsubscribes. This is a front-end demo — no email is actually stored.