Astrology,
without limits.
Explore charts with unmatched speed and convenience. Your cosmic journey, streamlined.
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Finally, cloud based Astrology software with real-time chart navigation.
Feature highlights
Access from any device
Astrotheoros operates as a progressive web app, access your astrology charts and view realtime transits from any web browser. You can install it on a variety of devices including iPhones, Android phones, Macs, and Windows PCs — much like any app from the app store. This flexibility ensures you can access your charts and data seamlessly, from any location and on any device.
Growing library of themes
Whether you prefer the clarity of light mode, the subtlety of dark mode, or the deep blacks of our OLED theme perfect for nighttime use, effortlessly switch to suit your visual preference and enhance your astrological explorations.
Ergonomically designed for Astrologers
Equipped with intuitive keyboard shortcuts, our signature dial, and thoughtful experience design, you can swiftly navigate between charts, transits, and journey through spacetime with unparalleled ease. Astrotheoros uses the Swiss Ephemeris so you can traverse ~13,000 BCE to ~16,800 CE without any page refreshes.
Current support
At present, Astrotheoros supports only tropical astrology calculations.
House systems
The house system is a crucial component of any astrological chart. It divides the ecliptic into twelve segments, each representing a different area of life. Astrotheoros currently supports the following house systems:
- Campanus
- Equal (cusp 1 is Ascendant)
- Equal (cusp 10 is Midheaven)
- Koch
- Placidus
- Porphyry
- Regiomontanus
- Whole sign
- Whole sign (Ascendant aligned)
Placements (Planets and otherwise)
Astrotheoros currently supports the following placements in a chart:
- Sun
- Moon
- Mercury
- Venus
- Mars
- Jupiter
- Saturn
- Uranus
- Neptune
- Pluto
- Lunar Nodes (mean)
- Lunar Nodes (true)
- Black Moon (mean apogee)
- Black Moon (osculating apogee)
- Chiron
- Pholus
- Ceres
- Pallas
- Juno
- Vesta
- Black Moon (natural apogee)
- White Moon (natural perigee)
- Lot of Fortune
- Lot of Spirit
- Ascendant (AC)
- Midheaven (MC)
- Imum Coeli (IC)
- Descendant (DC)
Aspects and orbs
Aspects are the angular relationships between planets in a chart. Orbs are the allowable margin of affect when determining whether an aspect is present. Astrotheoros currently supports simple orb values, a single value per aspect that applies to all chart placements, both when applying and separating. The aspect types currently supported are:
- Major
- Conjunction (0°)
- Sextile (60°)
- Square (90°)
- Trine (120°)
- Opposition (180°)
- Minor
- Semisextile (30°)
- Quintile (72°)
- Semisquare (45°)
- Quincunx (150°)
- Other
- Semiquintile (36°)
- Sesquiquintile (108°)
- Biquintile (144°)
- Sesquiquadrate (135°)
Biwheels
A biwheel is a chart that displays two separate charts in one. This is useful for comparing two charts side by side. Astrotheoros currently supports the following biwheel configurations:
- Transits
- Synastry
- Secondary Progressions
- Solar Returns
Terms (bounds)
Terms, also known as bounds, are the divisions of a sign into five unequal parts. Each part is ruled by a different traditional planet. Astrotheoros supports the following term systems:
- Egyptian
- Ptolemean
Decans (faces)
Decans, also known as faces, are the division of a sign into three equal parts. Each part is ruled by a different traditional planet. Astrotheoros supports the following decan systems:
- Traditional (Chaldean/Ptolemaic)
- Modern (triplicity rulership)
Pricing
Monthly
$8.99 USD + tax/ month
Annual
$79.99 USD + tax/ year
3 free months!
- Continuous updates
- Unlimited charts
- Access from any device
- Fast and ergonomic
Cancel any time, retain access to your chart data after cancelation.
Sign upAbout
Astrotheoros was founded to bring astrology into the modern age by offering innovative, accessible, and user-friendly tools for astrologers and enthusiasts alike. We believe astrology is a powerful resource for self-discovery and personal growth, and our mission is to make it easier for people to integrate astrology into their daily lives and practices.
Astrology is a deeply human art. Rather than automating or limiting the interpretive process, we strive to enhance the empathetic, intuitive, and creative skills that define great astrologers. Our tools are designed to support and empower, helping astrologers explore their craft in deeper and more meaningful ways.
We’re just getting started, and we’d love for you to join us in empowering astrologers everywhere.
Frequently asked questions
How do I install Astrotheoros on my device?
Astrotheoros is installed as a progressive-web-app, which means it behaves just like an app you would typically download from an app store, only you install it from the browser.
Follow the instructions for your specific device to install:
What happens if I cancel a subscription?
When a subscription is cancelled, access to Astrotheoros will be limited to a table of your saved charts. We believe you should not have to worry about losing your chart data just because you can't, or don't want to, continue a subscription and we will strive to keep it accessible to you for as long as possible. If you renew your subscription, you can continue where you left off accessing and viewing your charts with the full Astrotheoros experience.
If you fully delete your account, your chart data will be deleted as well.
What is your return policy?
Managing returns for a subscription based product is quite challenging, so we have opted to make all sales final. We do not offer refunds for subscriptions. If you cancel your subscription, you will retain access to Astrotheoros until the end of your paid subscription date. When your subscription expires, you will still have access to your chart data until you decide to delete your account (learn more in the previous FAQ item titled "What happens if I cancel a subscription").
If you have any issues with Astrotheoros, please contact us at support@astrotheoros.com