Free AI birth chart readings
An astrologer that lives on your phone.
Cosmata reads your full natal chart with an AI that runs entirely on your device. Your birth chart readings, daily transits and follow-up questions are free, and your birth data never leaves your phone.
Android · No account needed
Most astrology apps send your birth time and your questions to a server. Cosmata has no server to send them to.
The AI, the astronomy and your readings all live on your phone. After a one-time download it even works in airplane mode.
What it does
A real astrologer, not a horoscope feed.
Your birth chart, read in full
Houses, aspects and every placement, with readings that connect the dots in plain language instead of recycled sun-sign filler.
Today, from your own sky
A daily reading built from the real transits touching your chart right now: what's building, peaking and fading.
Go deeper with follow-up questions
Tap a suggested question about your chart or your day, and the AI suggests the next ones from what it just read. Like an astrologer who knows your chart by heart.
Compatibility, read honestly
Compare charts with a partner, friend or crush. Real synastry: the aspects between your two charts, not a star-sign match score. Part of Unlimited.
Transit alerts
Get a heads-up when a significant planetary movement touches your chart in the year ahead.
Listen to your readings
A natural voice reads every reading aloud, generated on your phone like everything else.
Private by design
Your birth time is personal. It stays that way.
Your birth date, time and place can identify you. Most astrology apps store them on their servers, alongside every question you ask. Cosmata's AI model is downloaded to your phone, so readings are written there and nowhere else.
| Typical app | Cosmata | |
|---|---|---|
| Where readings are written | Company servers | On your phone |
| Your birth data | Uploaded and stored | Never leaves your device |
| Your questions | Sent to an AI provider | Answered offline |
| Account required | Usually | No |
| Works in airplane mode | No | Yes |
Right-sized AI
Only as much AI as the reading needs.
Most AI apps send every question to a data center running a general-purpose model, often with hundreds of billions of parameters. Cosmata's astrologer is a small model trained for one job, and it runs on the phone you already own.
No server farm writes your readings, and nothing travels over the network to get one. Want more depth? On phones with 4 GB of memory or more, switch to the larger Best model, still entirely on your phone.
- 350MParameters in the default Lite model, trained specifically for astrology
- 229 MBThe whole model, smaller than many phone games
- 0Data centers involved in writing a reading
- 2.6 GBThe optional Best model, Google's Gemma 4 E2B, adapted for astrology, for deeper readings
- ✈︎Works in airplane mode after a one-time download
Pricing
Free to use, for as long as you like.
Free
- Your full natal chart and AI readings
- Daily readings from your transits
- Follow-up questions about your chart and your day
- Transit alerts
- Voice readings
Cosmata Unlimited
About $5 a month · cancel anytime
- Everything in Free
- Charts and readings for anyone you know, saved as profiles
- Compatibility scores and readings with the people in your life
- Or unlock it once, for life, at the early-access price of $100
Questions
Before you download
Is it really free?
Yes. Your own birth chart, readings, daily transits, alerts, voice and follow-up questions are free with no time limit. Unlimited is optional: it adds charts for other people and compatibility readings.
How can an AI run on a phone?
Cosmata uses a compact language model trained specifically for astrology. It's downloaded once with the app and runs on your phone's own processor, so no reading needs an internet connection.
How accurate are the charts?
Planet positions, houses and aspects are calculated on your device from astronomical models, using your exact birth time and place. The AI reads from those calculations rather than guessing.
Do I need my birth time?
For houses and your rising sign, yes. Your birth certificate usually has it. Without it you still get your planets and aspects.
Is there an iPhone version?
Not yet. Cosmata is on Android first.
Written in the stars. Kept on your phone.