Mastro is easy
Mastro has a modern and user-friendly interface. Charts are beautiful and interactive. See the aspects of a planet just by placing your cursor over it. Drag and drop planets to move forward or backward in time. Our documentation covers everything and is easy to understand.
Mastro is powerful
Mastro has all the features you want and much more, including natal charts, transits, bi-wheel and tri-wheel charts, progressions, harmonics, returns, profections, primary directions, midpoints, lunar nodes, asteroids, fixed stars, eclipses, ingresses, interpretation, and the list goes on.
Mastro is customizable
Mastro can be tailored to your needs, both appearance-wise and functionality-wise. It supports multiple coordinate systems (tropical or sidereal), reference planes, chart styles, house systems, and subdivisions. Orbs are customizable by angle or by planet. Mastro is available in English and in French.
Mastro is unique
Mastro Expert contains the world’s first expert system for natal, event, and synastry analysis, a groundbreaking achievement that is the result of years of research. This system powers two features that are exclusive to Mastro: the synthesis tree, and the Forecast Curves. See some examples.
For the first time in astrology software, you can click on any aspect in the aspectarium to have it drawn in the chart and interpreted. This allows, for example, to construct the drawing and interpretative synthesis of a Grand Trine by clicking on the three aspects that compose it.
A truly revolutionary new feature that leverages the power of Mastro’s unique expert system to provide an incredibly reliable and user-friendly way to foresee various types of events over a given period of time. Only available in Mastro Expert.
Maximums for Curves
The Maximums for Curves window displays the maximum score for each keyword. This allows you to see at a glance the important moments for all curves.
“Visually superb... an extremely powerful tool.”
“Incredible, all that is included. Words fail me... this is so awesome!”
“Of all the software I purchased, yours is by far the best.”
“Lots of options that I haven’t found elsewhere. You’ve earned my loyalty.”
“It’s amazing. You’ve taken astrology to a new level.”
“Mastro is one step ahead of the others. This is laser astrology.”
“Astrology software that keeps you intuitive and creative.”
“Mastro is a fighter plane. Extremely accurate and easy to use.”
“A fantastic tool for research.”
Mastro 7 comes in two editions: Standard and Expert.
The best free astrology software in terms of features, ease of use, and performance.
Includes all the features of Mastro Standard
- Natal, event, and synastry interpretation
- Forecast Curves
- Research features
- Ability to save event charts
- Advanced chart management
- Database of 1300+ public figures
- And much more...