Co–Star Personalized Astrology

4.5
94.5K reviews
5M+
Downloads
Content rating
Parental guidance
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About this app

Co–Star is the astrology app that deciphers the mystery of human relations through NASA data and biting truth. 2x App of the Day. Featured in the New York Times, Vogue, Vanity Fair, and more.

> "Good advice." New York Times
> "Banging astrology app." Dua Lipa
> "Connect with people about your astrology sign." Conor Oberst

Features
• Add friends to compare natal charts and see your compatibility.
• Read personalized daily horoscopes.
• Receive daily push notifications based on your horoscope for the day.
• Learn how to read your entire birth chart.

Premium Features
• See the full natal chart of somebody who doesn’t have the app.
• Get a complete personalized report on how you love and why.
• For couples, Eros, a feature that gives you insight on how to navigate everyday relationship situations based on your zodiac compatibility.

There are no bad zodiac signs, only complicated dynamics. Co–Star uses astrology as a framework for understanding ourselves and our relationships; a shortcut to real talk in a sea of small talk. We use NASA data to chart the exact location of the stars in real-time. This is then interpreted by real human astrologers who collaborate with AI technology to produce the birth chart and daily horoscopes you read in the app.

Follow us everywhere
• Instagram: https://www.instagram.com/costarastrology/
• Tiktok: https://www.tiktok.com/@costarastrology
• Twitter: https://twitter.com/costarastrology

Need help? Email us: [email protected]
We don't do creepy stuff with your data —> costarastrology.com/privacy
Terms —> https://www.costarastrology.com/terms
Updated on
Sep 30, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Messages and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
93.4K reviews
Bucky
July 14, 2025
Love the horoscopes and the interface. Very accurate info and easy to navigate. However I keep trying to change my profile photo and it never works no matter what size photo I chose. And I definitely want to change it because the preset profile photo is a FOOT and I HATE IT 😭 I don't want to see a foot every time I open the app. Please fix this 🙏 edit: this has been fixed probably long ago but I completely forgot I wrote this review. 5/5
46 people found this review helpful
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R Z
August 16, 2024
i hate that i have to sign up with a phone number or Facebook. It didn't send me a text, so had to use Facebook, which is an account I don't, and now it's using all the info from Facebook and trying to fins friends too. I just want an app without adding any of my socials. What if I didn't have Facebook? The phone number option didn't work, then it said my password was wrong, and to fix it all I have to wait for correspondence. An option to just use mail would've been much more convenient.
5 people found this review helpful
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Dave Sloboda
November 14, 2024
Over two years ago, I posted a review saying that it would be nice to finally get dark mode and the circular chart features on the Android version of this app. iOS has had those features for ages now, why not Android? And now, with this latest update... The UI on the app is even worse. The Home, Friends, and You navigation buttons are barely showing and are cut off. The top of the app is now going up into the notification section of my phone (Pixel 9 Pro). Terrible update.
87 people found this review helpful
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What’s new

The planets are always moving. Update to the latest version to see performance improvements and bug fixes.