Co–Star Personalized Astrology

4.7
94.6K reviews
5M+
Downloads
Editors' Choice
Content rating
Teen
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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: horoscopes@costarastrology.com
We don't do creepy stuff with your data —> costarastrology.com/privacy
Terms —> https://www.costarastrology.com/terms
Updated on
Sep 29, 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

4.7
93.4K reviews
Annie Derbabian
October 1, 2025
I like this app a lot, but there's an issue lately where I go to type a question for the void, and it doesn't let me see what I'm typing. like the field where you type stays behind my phone's keyboard as I'm typing, so I have to hit the back button and exit out of my keyboard to review and make sure everything makes sense (since I can't see what I'm typing)...
5 people found this review helpful
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Mila Cook
August 4, 2025
I think I didn't realize how important and dedicated the team's work was in development in this app and website, and how many people like myself it's helped. I previously said in a review, that I can't find but will delete, rescind, etc. This is a top tier collection of everything you need for something as delicate, volatile, and intricate as the finer details that make up who we are and see ourselves. Thank you for co-star
30 people found this review helpful
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MysticSleep
July 23, 2025
It's a good app, no doubt about it. Love the daily quotes and how it tells you what you need to work on. The only reason you won't be receiving a full five stars is because every time I open the app, it tells me it can't connect when I'm connected to my wifi. And before you tell me to uninstall and reinstall, I already did that. I've already tried clearing the data. I have to repeatedly press the try again button to actually get into the app. Idk if it's a glitch or not but it's annoying.
31 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.