The studio for working astrologers.
A clean workspace for charts, transits, synastry, progressions and ephemerides — built on our open-source calculation stack, on any device.
3-day free trial · No credit card required
Everything you need to work faster
Charts, timing, relationships and research — one clean, fast, transparent workspace.
Real-Time Planetary Transits
Overlay current planetary positions on any natal chart and read timing at a glance. Aspect lines, orbs and exact contacts, recalculated instantly for any date.
- Dual-ring chart with natal and transit positions
- Aspect lines between transit and natal planets
- Pick any transit date — instant recalculation
- Retrograde and station markers
Synastry & Composite
Compare two charts with a clear biwheel and a full cross-aspect grid, or study the relationship itself with a composite midpoint chart.
- Synastry biwheel with cross-aspect grid
- Composite (midpoint) charts
- House overlays and inter-aspects
- Modern and traditional wheel styles
Solar & Lunar Returns
Cast solar, lunar and planetary return charts for any year, with relocation support and precise timing down to the exact return moment.
- Solar, lunar and planetary returns
- Relocation support for any city
- Heliocentric and node return options
- Exact return timing
Instant Insights, Powered by AI
Get intelligent, context-aware interpretations for any chart. Rich formatted text with emojis, headings, and structured analysis delivered in real-time.
- Full chart analysis with key themes
- Structured sections with headings
- Real-time streaming text generation
- Works with all chart types
Simple, Transparent Pricing
One plan, everything included. No hidden fees.
Pro Plan
Full access to Astrologer Studio
One plan, everything included. Cancel anytime.
- Unlimited birth charts
- All chart types (Transit, Synastry, Composite, Returns)
- AI-powered interpretations
- PDF export
- Timeline analysis
- Priority support
3-day free trial • Cancel anytime, in one click
Legacy desktop suites cost hundreds of dollars upfront. Studio is $5/month — always up to date, on every device.
3-day free trial • No credit card required •or cast a free birth chart first
Go deeper with predictive techniques
A full predictive suite — progressions, directions and midpoints, built on the new engine.
Secondary Progressions
Progressed chart with contacts to the natal chart and predictive orbs you control.
- Progressed chart for any date
- Progressed-to-natal contacts table
- Configurable predictive orbs
Solar Arc Directions
Direct the whole chart by solar arc and see exactly which natal points it activates.
- Solar arc directed chart
- Contacts to natal placements
- Aspect and midpoint tables
Primary Directions, as a forecast
The classical timing method as a chronological life timeline inside the natal view.
- Chronological forecast table
- Key directions ordered by date
- Lives alongside the natal chart
Configurable Midpoints
A complete midpoint layer with highlighting and user defaults, on every chart type.
- Full midpoint table per chart
- Active midpoints highlighted
- Works across every chart type
Track Upcoming Transits
See exactly when transits perfect with a chronological timeline. Plan ahead with precise dates for applying and separating aspects.
- Chronological list of transit events
- Exact dates and times for aspect perfection
- Filter by planet, aspect type or date range
- Retrograde and direct station markers
Visual Planetary Ephemeris
Explore planetary movement with both graphical and tabular views, across any time period — perfect for research and verifying calculations.
- Graphical ephemeris with planetary tracks
- Detailed position tables by date
- Retrograde periods clearly highlighted
- Ingress dates and sign changes
Complete Chart Analysis
Every chart carries a full Data tab — positions, aspects, distributions — and your subjects live in an organized client database, a search away.
- Highlights, lunar phase and aspect details
- Element and quality distribution charts
- Client database with Rodden rating, tags and notes
- Quick search and filter across subjects
A daily Almanac
The sky right now: sunrise, sunset and twilight, the planetary hours of the day, and the Moon's void-of-course window — with correct local times across days.
- Sun times and twilight phases
- Planetary hours of the day
- Moon void-of-course window
- Accurate cross-day local times
3-day free trial • No credit card required •or cast a free birth chart first
Eclipses & Cycles
Track solar and lunar eclipses and the great planetary cycles — equinoxes, solstices, lunations and ingresses — with charts you can open in one click.
Chart Dominants
See what really drives a chart at a glance — the dominant planet, sign, element, modality and house, computed and ranked for you.
PDF Export
Turn any chart or predictive view into a clean, professional PDF report you can share with clients or print for a consultation.
Powered by Our Own Open Source Stack
Astrologer Studio v2 is built entirely onlibephemeris andKerykeion v6 — open-source libraries we created and maintain. The stack supports compact, JPL-derived ephemeris artifacts and explicit calculation-source metadata.
Precision You Can Verify
The next sealed-runtime release verifies pinned artifacts and records the source and coverage used for each point, including any declared local model.
No Proprietary Dependencies
libephemeris and Kerykeion are open source and maintained by us. Their sealed-runtime path is designed to calculate from locally provisioned data rather than a live ephemeris service.
Your Sub Funds Free Software
Revenue from Astrologer Studio directly funds the development of our open-source tools, used by thousands of developers and astrologers worldwide.
Questions, answered
How does the free trial work?
Create an account and you get 3 days of full access — every chart type, AI interpretations, PDF export. No credit card needed to start.
What happens when the trial ends?
Your subjects and saved charts stay safe in your account. To keep working you subscribe from inside the app — you are never charged automatically without completing checkout yourself.
How do I cancel?
Anytime, from your account settings, in one click. Your access simply runs until the end of the period you already paid for.
Is my clients’ birth data private?
Yes. Your subjects are visible only to your account, and the site uses privacy-first, cookieless analytics with no third-party trackers. You can export or delete your data at any time (GDPR).
How accurate are the calculations?
Accuracy depends on the body, date and calculation source. Astrologer Studio uses our open-source libephemeris and Kerykeion stack. A forthcoming sealed-runtime release adds checksum-verified local artifacts plus explicit source, precision and coverage metadata, including declared analytical fallbacks.
Does it work on my device?
Astrologer Studio runs in the browser — nothing to install. It is designed for desktop, tablet and phone, in light and dark theme.
How do payments and refunds work?
Billing is handled by Dodo Payments (major cards supported). See the refund policy for details — and remember you can try everything free before paying. Refund policy
Get Started in Three Simple Steps
Create Your Account
Sign up in seconds and set up your astrology preferences.
Add Your Subjects
Enter birth data for clients, friends, or personal study.
Generate & Interpret
Create charts, explore data, and get AI-powered insights.
Your next chart is 30 seconds away
Full access for 3 days — every chart type, AI interpretations, PDF export. Your subscription funds the open-source engine the whole community uses.
3-day free trial • No credit card required • Cancel anytime