One Two Moon vs Co-Star
Co-Star Astrology App vs One Two Moon (2026)
Co-Star is the better pick if you want a daily horoscope shared with friends on iPhone, Android or Mac. One Two Moon is the better pick if you want an AI astrologer, compatibility scored out of 100 and a flat price. We make One Two Moon, so check the store listings yourself.
Co-Star vs One Two Moon at a glance
Co-Star is a personalized astrology app known for blunt daily horoscopes and friend charts, and One Two Moon is an astrology iPhone app built around an AI astrologer and compatibility scores. Both read your birth chart. They differ in who you use them with, how you pay and whether you can talk back.
One Two Moon is made by the same company as Twelve Houses, Hive Asset Group, LLC, so we are not neutral. Facts about Co-Star come from its App Store and Google Play listings, checked in November 2026. Its own website is JavaScript-only and could not be read as text, so anything only found there is left out. Prices are US dollars and change, so check the listing before you buy.
| One Two Moon | Co-Star | |
|---|---|---|
| Platforms | iPhone | iPhone, Mac, Android, Apple Vision |
| Subscription | $9.99 a month or $39.99 a year, 7-day trial on the yearly plan | Pro-Star $8.99 a month |
| Paid extras | Compatibility Report $9.99, Soulmate Sketch $19.99, Your Year 2027 $14.99 | Eros $6.99, Your Year Ahead $11.99, Advanced Chart $8.99, question packs from $2.99, Crush Report $4.99 |
| Free tier | Daily cards, limited Vega chat, limited people | Daily horoscope, friends, chart reading guide |
| AI | Vega, an AI astrologer | Human astrologers plus AI for horoscopes, Ask the Stars Q&A |
| Birth time | Optional | Not confirmed |
| Store rating | New app, almost no ratings | 4.78 from about 205,800 on iPhone |
Prices checked November 2026, US storefront. We could not confirm a Co-Star yearly price or trial length, so we do not list one.
The Co-Star birth chart and daily horoscope
Co-Star builds your natal chart from your birth date, time and place, then writes a short daily horoscope against today’s sky. The app is free to download and the free tier includes the daily horoscope, push notifications and a guide to reading your chart. It says it charts planets using NASA data, which is the only data source named by any app on our best astrology app list.
Co-Star’s biggest strength is the social layer. You add friends, see their charts and compare. Its rating count is far larger than any other astrology app, and it runs on Android as well as iPhone, so a mixed group of friends can all use it.
What Co-Star charges for
The subscription is Pro-Star at $8.99 a month. Many other things are sold one at a time: Eros for couples ($6.99), Your Year Ahead ($11.99), Advanced Chart for yourself or for relationships ($8.99 each), Ask the Stars question packs (5 for $2.99, 10 for $4.99, 25 for $6.99), the Crush Report ($4.99) and the full chart of someone who does not have the app. The Google Play listing shows items from $0.99 to $74.99. That model is fine if you buy one thing, but the total is hard to predict if you keep adding.
What One Two Moon does differently
One Two Moon puts a conversation and a compatibility score in the same app. Vega, the AI astrologer, reads your placements and your synastry with another person, and remembers what you told it. Compatibility is scored out of 100 with five sub-scores: Spark, Communication, Trust, Long-term and Chaos. A “Tap to Compare” link lets the other person see the result without downloading anything. You also get three daily cards (Love, Mood and Luck), tarot, a moon calendar and Home Screen and Lock Screen widgets.
Pricing is simpler. Premium is $9.99 a month or $39.99 a year with a 7-day trial on the yearly plan, plus three one-time items. Birth time is optional: without it the app reads what does not depend on the clock and holds back the Rising sign and houses until you add a time.
The trade-offs are plain. One Two Moon launched on November 7, 2026, so it has almost no ratings and no track record. It is iPhone only. It has no big friends network yet, so the social side relies on sharing links. If your friends already live in Co-Star, that matters more than any feature.
AI: how the two compare
Both use AI, in different ways. Co-Star says humans work with AI to produce the chart text and horoscopes, and offers Ask the Stars for open questions. We could not read a primary page saying what model sits behind Ask the Stars. One Two Moon is open that Vega is an AI, not a person, and says it is for entertainment and self-reflection, not medical, legal or financial advice. A few Play Store reviews of Co-Star complain about AI-related changes, which is opinion, not fact.
Which should you pick?
- Choose Co-Star if you want a free daily horoscope, friends on Android or Mac, or a long-established app with a large user base.
- Choose One Two Moon if you want to question an AI astrologer, score a relationship out of 100, or pay one flat subscription instead of piecemeal reports.
- Use both if you like: the free tiers cost nothing. Or skip apps and use the free birth chart and compatibility calculator here.
Get One Two Moon on the App Store or read more on the One Two Moon page.
Questions people ask
- Is Co-Star free?
- The app is free to download, and the free tier gives a personal daily horoscope and lets you add friends to compare charts. Pro-Star is $8.99 a month, and reports, question packs and extra charts are sold separately, from about $2.99 each.
- Does Co-Star use AI?
- Its store description says the birth chart and daily horoscopes are produced by real human astrologers working with AI technology. Its Ask the Stars feature answers open questions, but we could not confirm from a primary page what powers it.
- How do I get my Co-Star birth chart?
- Create an account and enter your birth date, time and place, and the app builds your natal chart. Co-Star says it charts planets using NASA data. Our free birth chart tool on this site shows the same placements with no account, so you can compare.
- Is One Two Moon a good Co-Star alternative?
- It depends on what you liked. If you used Co-Star for the daily horoscope and friends, the closest match is One Two Moon's three daily cards and shareable compatibility link. If you liked Ask the Stars, Vega is an AI astrologer you can question for free each day.
- Is Co-Star more accurate than One Two Moon?
- Not in a way anyone can show. Planet positions are standard maths, so differences come from the birth time and place you enter. Co-Star names NASA as its data source. We do not claim One Two Moon is more accurate, and the fair test is to compare your Sun, Moon and Rising across two sources.
- Does One Two Moon work on Android?
- No. One Two Moon is an iPhone app, and we found no Android version. Co-Star runs on iPhone, Android, Mac and Apple Vision, which counts if your friends are on Android.
For entertainment and self-reflection.