The studio for working astrologers.
Create charts, explore transits and compare relationships. Keep your subjects and calculations together, on desktop, tablet or phone.
3-day free trial · No credit card required
- Open-source calculation engine
- Tropical & sidereal
- Customizable chart settings
- No installation required
Charts, timing and research in one workspace
Explore planetary transits
Compare planetary positions for a selected date with a natal chart. Explore the aspects between them, with orbs and chart details alongside the wheel.
- Dual-ring chart with natal and transit positions
- Aspect lines between transit and natal planets
- Choose a date and update the chart
- Retrograde markers
Synastry & Composite
Explore how two charts relate through synastry, or combine their positions in 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
Find when a planet returns to its natal position and explore the chart for that moment. Choose a location to compare house placements.
- Solar, lunar and planetary returns
- Relocation support for any city
- Heliocentric and node return options
- Exact return timing
AI interpretations to support your chart reading
Explore a written interpretation based on your chart data and chosen settings. Use it as a starting point for study or consultation preparation, alongside your own judgment.
- Summaries of chart themes and placements
- Readings tailored to the selected chart and astrological approach
- Support for multiple interpretation languages
AI can make mistakes. Review its suggestions against the chart; interpretations are not predictions of certain events. Daily usage limits apply.
Sun in Leo in the 5th house
This placement can emphasize creative expression and the wish to bring something personal into the world. The 5th house connects that expression with play, creative projects and enjoyment.
Questions to explore
- Which activities offer room for creativity and self-expression?
- How do the Sun's aspects add support or tension to these themes?
- How does this placement relate to the rest of the chart?
One placement is only part of the picture. Read it alongside the chart as a whole.
One subscription for your workspace
Explore the Pro tools free for 3 days. No credit card required.
Pro Plan
Full access to Astrologer Studio
Billed monthly. Cancel renewal anytime.
- Unlimited birth charts
- Natal, transit, relationship and return charts
- Progressions, directions and ephemerides
- 20 AI interpretations per day
- PDF export
- Transit timeline
- Saved subjects and calculations
3-day free trial • No credit card required
Subscribe after your trial to continue using the workspace. Paid subscriptions renew monthly until canceled. Any applicable taxes are shown at checkout.
Go deeper with predictive techniques
Compare progressed and directed positions with the natal chart, and explore midpoint contacts.
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
Compare solar arc directed positions with the natal chart and explore their aspects.
- Solar arc directed chart
- Contacts to natal placements
- Aspect and midpoint tables
Primary directions
Study primary directions in a date-ordered table alongside the natal chart.
- Directions ordered by date
- Promissor and significator details
- Available from the natal chart
Configurable Midpoints
Explore the positions halfway between pairs of chart points, with settings you control.
- Midpoint positions and contacts
- Active midpoints highlighted
- Configurable midpoint settings
Track Upcoming Transits
Browse upcoming transit aspects in date order. Choose the transiting planets, natal points and aspects you want to follow.
- Chronological list of transit events
- Exact dates and times for aspect perfection
- Filter by transiting planet, natal point and aspect
- Choose a start date and load more events
Visual Planetary Ephemeris
Follow planetary movement over a selected period. Switch between a graphical overview and position tables for closer study.
- Graphical ephemeris with planetary tracks
- Position, declination and speed tables
- Retrograde motion marked in the tables
- CSV export for further study
Chart details and saved subjects
Review positions, aspects and distributions alongside your chart. Keep birth data, notes and tags together in your subjects database.
- 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
Sunrise, sunset, planetary hours and Moon void-of-course times for your selected location.
- Sun times and twilight phases
- Planetary hours of the day
- Moon void-of-course window
- Times shown for your selected location
3-day free trial • No credit card required • or cast a free birth chart first
Eclipses & Cycles
Browse solar and lunar eclipses, equinoxes, solstices, lunations and ingresses. Open an event to explore its chart.
Chart Dominants
Compare ranked planets, signs, elements, modalities and houses according to the selected calculation method.
PDF Export
Export chart reports to PDF to share with clients or print for a consultation.
Explore the calculation engine behind your charts. View source code and licenses.
Questions, answered
How does the free trial work?
Create an account to try the Pro workspace for 3 days, including charts, predictive tools, PDF export and up to 20 AI interpretations per day. No credit card is needed.
What happens when the trial ends?
A paid subscription is required to continue using the workspace after the trial. Your saved subjects and calculations are not deleted when the trial ends, and account settings remain accessible. There is no ongoing free workspace plan. You are only charged if you choose to subscribe; paid subscriptions then renew monthly until canceled.
How do I cancel?
Open Settings, find the Subscription card and select Manage to open the payment portal. Cancel renewal there before your next billing date. You keep access for the period you have already paid for.
Is my clients’ birth data private?
Your saved subjects are private to your account. AI interpretations use external services; names are replaced before generation, but this does not mean no chart data leaves the service. You can export your account data or request deletion in Settings. See our policies for data processing and cookieless analytics details. Privacy policy Cookie policy
How accurate are the calculations?
Positions are calculated for your selected date, time and place using your chosen chart settings. Accuracy and date coverage depend on the body and calculation method. Birth-data accuracy also matters: an uncertain birth time can change house placements and timing techniques. Calculation components and source code
How many AI interpretations are included?
Pro and the free trial include up to 20 AI interpretations per day. You can check your remaining allowance in the app. AI is optional and can make mistakes; review its suggestions alongside the chart.
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?
Dodo Payments handles checkout and billing. Paid subscriptions renew monthly until canceled; any applicable taxes are shown at checkout. Refund eligibility and the request process are described in our refund policy. Refund policy
Get Started in Three Simple Steps
Create your account
Sign up and choose your chart settings.
Add birth data
Enter a date, time and place for a client or your own study.
Explore the chart
Review positions and aspects, with optional AI interpretations to support your reading.
Start exploring your next chart
Try Pro for 3 days: charts, predictive tools, PDF export and up to 20 AI interpretations per day.
3-day free trial • No credit card required