| Kepler 7 | Kepler 8 | Sirius 2.0 |
| An almost endless number of features, many of which are not available in other astrology software: Time Line and AstroSignature forecasts, AstroMaps, extensive research, many interpretations, etc. (features listed below are only the features that are more extensive Kepler 8 or Sirius 2.0) | Yes | Yes | Yes |
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| Overall look and feel of the program | Easy to use, but the layout, design, and colors of many windows are nicer in Kepler 8 and Sirius 2. | Elegant. Same as Sirius 2.0 | Elegant. Same as Kepler 8. |
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| Business Manager feature for scheduling clients, etc. | No | Yes | Yes |
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| Number of cities in atlas | About 350,000 | Over 1 million | Over 1 million |
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| Number of charts of famous people, businesses, etc. | About 19,000 | Over 19,000 | Over 84,000, and this includes over 20,000 charts from the AstroDatabank and includes the birth data accuracy rating and a link to the information in the online astrodatabank |
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| Progressed Charts | 5 direct and 5 converse kinds of progressions, 4 ways to progress house cusps | 10 direct and 10 converse kinds of progressions, 4 ways to progress house cusps | 10 direct and 10 converse kinds of progressions, 9 ways to progress house cusps |
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| Return Charts | Solar, Lunar, and Planet Returns | Also Bailey Conception Chart | Also Bailey Conception Chart, Phase Angle Returns, Converse Returns, Prenatal Lunation Charts, Diurnal Charts, Converse Transit Chart |
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| Composite Charts | 4 different methods of calculating composite charts | Only composite charts of 2 charts | Also composite charts of 3 or more charts |
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| Harmonic Charts and Arc Transform Charts | Yes | Also fractional harmonic charts | Also fractional harmonic charts and the Harmonic Age Chart |
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| Save to file | Ability to save in different formats and resolutions | Ability to save in different formats and resolutions | Also ability to save in PDF format (within the program without requiring a PDF printer driver) |
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| Chart Wheels | Many wheel styles and excellent features to customize | Improved default colors and color choices, more elegant Page Designer with drag-and-drop capability | Same as Kepler 8 and also a popup wheel, a popup wheel in a separate program feature, and a menu item to view the wheel in a graphics program. Also chart wheel patterns according to different methods such as the Huber system, etc. |
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| Interactive Wheels and AstroClock | AstroClock and very simple and limited Time Adjust feature. BiWheels, TriWheels, and QuadWheels are available but not in an Interactive style where you can interactively move the chart forward and backward in time. | Elegant and sophisticated Time Adjust feature, Interactive Natal-Transit BiWheel, Interactive Natal-Progressed BiWheel, and Interactive Natal-Transit-Progressed TriWheel. QuadWheels are available but not an interactive QuadWheel. | Same as Kepler 8 and also an Interactive QuadWheel that is either Natal-Transit-Progressed-Solar Return or Natal-Transit-Progressed-Progressed (2 progressed charts such as secondary progressed and solar arc, for example). |
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| Midpoint Structures | Yes | Yes | Can also include any asteroid in a midpoint structure, midpoint structures in altitude, and also golden ratio and direct distance midpoint structures. |
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| Degree Meanings | Degree Meanings according to 11 different astrologers | Also the original Sabian Symbols by M.E. Jones, Sabian symbols of angular distance, and the Circular Degree Meanings of John Sandbach | Same features as Kepler 8. |
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| Harmonics, Fixed Stars, classical astrology, etc. | Many listings and tables of information | Same as Kepler 7. | Also other listings and tables such as List of Asteroid Nodes, Perhelion and Aphelion, Refranation Table, composite almutens, almudebit and anareta tables, temperament analysis, Table of harmonics 1 - 32 based on work of David Hamblin, Ability to select highest harmonic in harmonic aspect grid, List of Harmonics 1 - 128 of direct midpoint structures, Huber strength listing, etc. |
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| Interpretations | Natal, Compatibility, Forecast, and Relocation. Some reports are available in various languages (Spanish, French, etc.) | Same as Kepler 7. The Fixed Stars and Asteroid Interpretations in Sirus 2.0 are available as an optional purchase | Also an Interpretation of Planets Conjunct Fixed Stars, and an Interpretation of Planets Conjunct Asteroids, |
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| AstroSignature and Electional Forecasts | Many graphic forecasts | Same features as Kepler 7, but with improved user interface | Also a sophisticated Weather Forecast and a Gold Price Forecast, and an Accident Proneness Forecast. There are tutorial videos on the research that is the basis for the Gold Price and Accident Forecasts. |
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| Rectification | A score indicating likelihood of birth time based on various forecast methods | Same as Kepler 7 with some improvements to the user interface. The automatic rectification feature of Sirius 2 is available as an optional purchase. | Automatic rectification: the likelihood of the birth time over the time period during the day that you select is determined and a graph of the results and a window of the astrological details is given. |
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| AstroCalendar | No | Available as an optional purchase | Yes |
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| Primary Directions | Several different methods of calculating primary directions are provided. | Same as Kepler 7 | Also options for planets aspecting planets, the 4 major asteroids, and Chiron, and primary directions without latitude. |
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| Planet Mandalas | No | Not included. Available an optional purchase. | Yes |
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| AstroMaps | Many kinds of AstroMaps including Treasure Maps, Local Space, Geodetic, etc. | Also the Zenith Star Map | Also an Arabic Parts Map and a Paran Map |
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| Vedic | Extensive Vedic features that are very easy to use | Same as Kepler 7 | Also Panchanga table, Muhurta table, Sarvatobhadra, Marriage Matching, Krishna Paddhati system, a simple charka window, and a dosha questionnaire, more dasha systems, and other options |
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| Calculator | Yes | Also features for technical astrologers such as converting right ascension and declination to or from zodiac longitude and latitude, converting 360 degree to and from 24 hour notation, etc. | Same as Kepler 8 |
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| Research | Extensive features for researching the database for specific factors or AstroSignatures, compatibility, paired charts such as a chart and an event, etc. | Also ability to list chart data sorted by date or a planet position | Same as Kepler 8 and also a feature for exploring quantitative data and synodic cycles, and the ability to export planetary data for use in a spreadsheet program or statistics program. |
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