Co-Star alternative
Lunonis is a Co-Star alternative for people who want their full natal chart in a browser, in their own language, without installing an app. Co-Star is built around daily notifications and friends; Lunonis around the chart itself, with free houses and aspects, and PDF books you keep.
Lunonis vs Co-Star
Co-Star: An iPhone astrology app with daily push horoscopes and friend compatibility. Facts from its own site or store listing, checked 1 November 2026; prices in US dollars, they vary by country and change.
| Co-Star | Lunonis | |
|---|---|---|
| Where it runs | iPhone app | Website (no app needed), works on phone and desktop |
| Free natal chart | Daily horoscope and chart lessons; the advanced chart is a paid add-on | Free natal chart with wheel, houses and aspects, no account and no email |
| Languages | English | 11: English, Spanish, Portuguese, French, German, Italian, Polish, Turkish, Japanese, Chinese, Ukrainian |
| Paid | Pro-Star $8.99 a month; add-ons such as Advanced Chart $8.99, Your Year Ahead $11.99, question packs $2.99 to $6.99 | Subscriptions $5.99 to $19.99 a month; or one-off reports from $6.99 |
| Reports to keep | In-app reports | Yes: PDF books (from $24.99) and reports by email, yours to keep |
| In AI assistants | Not offered | MCP server and GPT action: get your chart inside Claude or ChatGPT |
Which one fits you
Choose Co-Star if
- You want daily push notifications and a social feed of friends' charts.
- You like short, punchy daily lines more than long readings.
Choose Lunonis if
- You want your whole chart (houses, aspects, degrees) for free on the web.
- You read in Spanish, Portuguese, Turkish, Japanese or another of our 11 languages.
- You want a PDF book or report you can keep or give as a gift.
Calculate your birth chart free, no account needed.
Questions
Is there a free alternative to Co-Star?
Yes. Lunonis shows a full natal chart with Placidus houses and aspects for free in the browser, with no account and no email. Daily personal forecasts are part of the paid subscription.
Does Lunonis have an app like Co-Star?
Not yet. Lunonis runs in the browser on phone and desktop, so there is nothing to install.
Can I see a friend's chart without them joining?
Yes. Enter anyone's birth date, time and place and the chart is calculated on the spot; the compatibility calculator compares two charts, also free.