If you are choosing between Co-Star and The Pattern, you are really choosing between two philosophies of what an astrology app is for. Co-Star is a daily companion built around short, punchy updates and comparing charts with friends. The Pattern is a long-form psychological profile that reads more like a personality report than a horoscope. Both are polished native apps with large communities, and both keep their deeper content behind an account.
This guide lays out the actual differences, what is known about pricing, and where a third option fits: a free web natal chart that also shows the same birth data in Chinese systems. Facts about the two apps were checked on their public websites and App Store listings on 2026-09-12; FateChart is not affiliated with either company, and both names belong to their owners.
Co-Star vs The Pattern at a glance
| Co-Star | The Pattern | FateChart | |
|---|---|---|---|
| What it is best at | Daily push updates, friend comparisons, a sharp editorial voice | Long psychological narratives, timing cycles, relationship “bonds” | Full chart data in one place, no account |
| Free tier | Basic chart and daily updates in the app | Free web natal chart; deeper content in the app | All charts free, no signup |
| Account required | Yes | For anything beyond the web chart | No |
| Web version | No | Free web natal chart only | Everything runs in the browser |
| Languages | English | English | 8 languages |
| Chinese systems (BaZi, Zi Wei) | No | No | Yes, same birth data |
| Paid reading price | Not published on the website | Not published on the website | US$3.99 for 10 credits |
| App Store rating (US, 2026-09-11) | 4.8 stars, about 205,000 ratings | 4.0 stars, about 15,000 ratings | Web app, no listing |
“Not published” means we could not find a price on the company’s public pages; both apps sell in-app upgrades whose prices are shown inside the app and vary by region.
What Co-Star does well
Co-Star’s strength is habit. It sends a short daily update, lets you add friends and see how your placements interact, and its writing has a distinctive, sometimes blunt tone that people either love or screenshot. With roughly 205,000 ratings at 4.8 stars in the US App Store, most of your friends are probably already on it, which matters when the main feature is comparing charts with people you know.
What it does not do: there is no web app, so you need the phone; it is English-only; and the underlying chart data is presented as a curated interpretation rather than a full table of placements, aspects and house cusps you can study.
What The Pattern does well
The Pattern skips the horoscope format entirely. Instead of a daily line, it gives you long paragraphs about your “patterns”, your current timing cycles, and “bonds” that describe the dynamic between you and another person. Many users describe the write-ups as uncannily specific. It also offers a free natal chart on the web, which Co-Star does not.
Its limits mirror Co-Star’s: English only, the deeper content needs the app and an account, and its Go Deeper+ and Connect+ upgrades do not have public prices on the website. Its US App Store rating is lower than Co-Star’s, around 4.0 stars from about 15,000 ratings, which mostly reflects complaints about the paywall rather than the content.
Which one should you choose?
- Choose Co-Star if you want a daily nudge, you want to compare charts with friends inside the app, and you like its voice.
- Choose The Pattern if you want long, reflective text about your psychology and relationships and you do not mind reading on your phone.
- Choose neither, at least at first, if what you actually want is the chart itself: your exact planetary placements, aspects and houses, ideally in a browser you can bookmark, without creating an account.
That third case is common. People often download both apps, compare a few one-liners, and still do not know what their chart says in the plain astrological sense. Reading the chart is a skill you can learn, and the how to read a natal chart guide walks through it.
Where FateChart fits
FateChart is a web app, not a social app. Enter a birth date, time and place and you get the full Western natal chart instantly, with no account, in eight languages. The same birth data is also shown as a BaZi (Four Pillars) chart and a Zi Wei Dou Shu chart, so you can see how the Chinese systems describe the same person, something neither Co-Star nor The Pattern attempts. The calculation method is published on the methodology page.
When you want an interpretation, an AI reading costs US$3.99 for 10 credits, pay-as-you-go, with no subscription. The reading is generated by AI and is labeled as such; it is meant for reflection and entertainment, not advice. If you prefer not to pay anything, the chart data and the free guides on this site are enough to get started.
For a feature-by-feature look at each app against FateChart, see FateChart vs Co-Star and FateChart vs The Pattern, or the full comparison hub.
FAQ
Is Co-Star or The Pattern more accurate? Both use standard ephemeris data, so the chart maths is equally accurate. Whether an interpretation is “accurate” cannot be verified for any app, including FateChart. Treat all readings as prompts for reflection.
Can I use Co-Star or The Pattern on the web? The Pattern offers a free natal chart on its website; Co-Star does not have a web app. FateChart runs entirely in the browser.
Do I need an account? Yes for Co-Star, and for The Pattern beyond the free web chart. FateChart shows the full chart without an account.
Which is cheaper? Neither company publishes its upgrade prices on the website, so we cannot compare them here. FateChart’s reading price is public: US$3.99 for 10 credits, or a US$9.99 monthly Fortune Pass.
Get your free natal chart on the natal chart page, then decide whether you want a daily app on top of it.