Sadeem
Three questions, answered for your sky.
Not a weather dashboard. Sadeem compresses darkness, the Moon, cloud and haze into what you actually need to decide.
Is tonight worth it?
One Stargazing Score from 0 to 100, with a plain verdict, for tonight and the week ahead.
When should I go out?
The darkest, clearest hours of the night, so you don't waste a trip.
What will I really see?
Targets chosen for your sky's darkness and your eyes, binoculars or telescope, not a list of everything.
The Stargazing Score
It measures how dark and clear your sky is, hour by hour, on one scale for every place on Earth, so you can compare nights and places. Darkness counts most; cloud, rain and haze hold it back. A city sky is told honestly that it is a city sky.
- Excellent80–100
- Great65–79
- Good50–64
- Fair35–49
- Challenging20–34
- Better another night0–19
Everything a night out needs.
Built natively for iPhone, designed for the dark, and calculated on your device.
Tonight's plan
The best targets for tonight, when each is highest, and why it is worth seeing.
Week ahead
Every night of the week ranked by the score, so you can pick the best one.
Sky Map
Hold up your phone to see constellations, planets and targets where they really are.
460 sky objects
Planets, stars, clusters, nebulae and galaxies, each with how to find it and what you will see.
Events & reminders
Meteor showers, eclipses and planets at their best, with a reminder when it matters.
62 lessons
From your first night under the stars to reading star charts, in short illustrated lessons.
Red Mode
A red screen that keeps your night vision while you observe.
Observing journal
Log what you saw, add notes, and sync privately with iCloud.
Truly Arabic
A full right-to-left Arabic interface, plus English and Spanish.
Your sky stays yours.
No accounts, no ads, no analytics, no tracking. The sky is calculated on your iPhone, and your journal lives on your device and in your own iCloud. Read the privacy policy.
Questions
What is the Stargazing Score?
A number from 0 to 100 that measures how dark and clear your sky is, hour by hour. It counts the darkness of your site, twilight and the Moon most, and cloud, rain and haze limit it. Places and nights are scored on one scale, so you can compare them.
Does Sadeem work in a city?
Yes. Sadeem estimates the light pollution where you are and only recommends what you can realistically see, such as the Moon, planets and bright stars and clusters. It also tells you how much more a darker site would show.
Do I need a telescope?
No. Sadeem plans for your eyes first, and also for binoculars and telescopes.
Does Sadeem collect my data?
No. There are no accounts, ads, analytics or tracking. Your journal stays on your device and in your own iCloud if you turn sync on.
Which languages does Sadeem support?
English, Arabic and Spanish, including a full right-to-left Arabic interface.
Where can I get help?
Visit Support or email support@sadeem-app.com.
Clear skies are coming.
Sadeem arrives on the App Store soon.