Solar Fire alternative
Steliara runs in the browser, reads the chart file you already have, and keeps everything about every person you read for, including the actual recorded consultations, in one place.
Free 14-day trial. No card needed.
No. Astrolabe, who sell Solar Fire, say they do not officially support it on the Mac, and that customers who run it there do so on an Intel Mac with Windows and a Windows emulation program, which needs its own Windows licence. Their guidance also notes that Solar Fire 9 will not run under Wine.
So the honest answer to the query is a short list. Astro Gold, from the same people, is a real macOS program and shares chart files with Solar Fire. Or you move to something with no operating system requirement at all, which is what this page is about.
It is worth being straight about this, because most pages with this title are not. Solar Fire has been the reference professional chart program for decades, and the reason is depth. Astrolabe's own page for version 9 lists 30 house systems, 50 standard points including asteroids and hypotheticals, 26 predefined aspects, and more than 110 chart wheel designs, alongside progressions, directions, returns, harmonics, composites, astro-mapping and Vedic tools such as dasas and nakshatras.
It also writes interpretation reports you can hand to the person you read for, it runs entirely on your own machine with no connection needed, and you buy it once. There is no renewal date and nothing switches off if you stop paying.
If what you need is the widest possible calculator on a Windows machine, nothing here will beat it, and you should keep it.
Almost every switch we hear about comes down to one of these, and usually the first one is what starts the search.
The first reason is a platform problem and a Mac program solves it. The second and third are not about calculation at all, which is why swapping one calculator for another calculator does not fix them.
| Solar Fire V9 | Steliara | |
|---|---|---|
| Platform | Windows, installed on one machine | Any browser, macOS or Windows |
| On a Mac | Windows emulator plus a Windows licence | Open it and sign in |
| Works offline | Yes | No, it needs a connection |
| House systems | 30 | 6 |
| Chart wheel designs | 110 or more | One studied default |
| Written interpretation reports | Yes | No |
| Astro-mapping and Vedic dasas | Yes | No |
| Profile per person you read for | Birth data only | Charts, notes and past sessions together |
| Runs the consultation | No | Yes, as a video call in the app |
| Records and transcribes it | No | Yes, with a summary filed on their profile |
| Price | $360 once, paid upgrades between versions | $24 or $39 a month |
Read the top half and Solar Fire wins. Read the bottom half and it is not competing, because it was never built to. That is the actual choice.
Stated plainly, because finding this out in week three is worse than reading it now.
You do not have to give any of it up at once. Solar Fire stays installed and keeps working, and nothing about starting a trial here takes it away.
Steliara reads the .SFcht chart file that Solar Fire and Astro Gold both use, so you upload it directly. If you do not have one to hand, Solar Fire can send the whole chart database to a text file and Steliara reads that too.
What comes over. The name on each record, the birth date and local time, the place and its coordinates, the UTC offset stored in the file, and the notes you kept against each chart, which land as notes on the chart here. You can send everything into your library as separate charts, or gather a set into one person's profile. A file can hold up to 5 MiB and 2,000 records, and likely duplicates are flagged before anything is saved rather than after.
What you re-enter. Your calculation settings do not travel. Charts are recalculated here with the house system and zodiac you choose during the import, so check those before you confirm. Subsidiary charts saved inside a Solar Fire record, such as a progression stored alongside the radix, are not carried over either; the main chart is saved and you rebuild the derived ones when you need them, which takes seconds. Anything that was never in the chart file in the first place, your notebook, your folder of session documents, is still yours to bring across by hand, and most people bring only the people they are still reading for.
The import lives in your account settings, and you can pause a large file and finish it later.
Three situations, and we would rather say so here than waste your trial.
You want desktop depth on a Mac. Astro Gold for macOS is US$249.99 and is made by the creators of Solar Fire, and its chart files are interchangeable with Solar Fire's. That is a far closer match to what you already know than anything in a browser, and it is the honest answer to "Solar Fire for Mac".
Your practice is research, not consultation. If most of your hours go into rectification, harmonics, astro-mapping or Vedic technique rather than sitting with people, you are buying the half of Steliara that is thinner and skipping the half that is the point.
You read in person, or you do not want to record. The consultation capture is the reason to be here. If your readings happen across a table and stay there, a one-time licence you already own is better value than a monthly bill.
Practitioner is $24 a month, or $20 a month billed annually, and covers charts, unlimited people profiles and notes. Studio is $39 a month, or $32 annually, and adds the recorded consultations, transcription and summaries. Every account starts on a 14-day trial with every feature unlocked and no card.
Practitioner
$24 / month
$20 per month billed annually. Charts, unlimited people profiles, notes, forecast timeline and tables, multiple house systems.
Studio
$39 / month
$32 per month billed annually. Everything in Practitioner, plus recorded consultations, transcription, session summaries and fast answers from chart data.
Against a $360 licence you own, a subscription has to keep proving itself, so it is fair to say what it buys: not the calculation, which you already have, but the consultation and the person it was about. If a subscription lapses the account turns read-only rather than locking you out, so your charts and records stay reachable.
AI will never read a chart for you. It just finds the facts faster: the aspects, the exact dates, where a planet sits. The summary captures what you said. You stay the astrologer.
No. Astrolabe state that they do not officially support it on the Mac, and that customers who run it there use an Intel Mac with Windows and a Windows emulation program, which needs its own Windows licence. Their guidance also notes that Solar Fire 9 will not run under Wine. The alternatives are Astro Gold, made by the same people for macOS, or a browser-based tool with no operating system requirement at all.
Yes. Steliara reads the .SFcht chart file that Solar Fire and Astro Gold both use, so you upload it directly. If you do not have one, Solar Fire can email all charts to a text file and Steliara reads that too. Names, birth dates and times, places, coordinates and the notes stored against each chart come across, up to 5 MiB and 2,000 records per file.
Solar Fire V9 is a one-time purchase of $360, with paid upgrades between versions. Steliara is a subscription: Practitioner at $24 a month or $20 billed annually, Studio at $39 a month or $32 billed annually. Over several years the perpetual licence is cheaper for chart calculation alone. The subscription covers the consultation recording, transcription and summaries that a calculator does not do.
Quite a lot on the calculation side. Solar Fire lists 30 house systems, 50 standard points, 110 or more chart wheel designs, written interpretation reports, astro-mapping and Vedic tools such as dasas and nakshatras. Steliara offers six house systems, has no astro-mapping and no Vedic dasa tools, and does not write interpretation reports. It also needs an internet connection, where Solar Fire runs offline on your own machine.
No. Steliara runs in any modern browser on macOS, Windows or a tablet. There is nothing to install, no per-machine licence, and no Windows emulator to set up and maintain.
Charts are computed with the Swiss Ephemeris, the same calculation library the professional desktop programs are built on, using an orb table tuned with a practising astrologer.
Yes, and many people will want to. Solar Fire stays on your machine and keeps working after you stop paying for anything. The 14-day trial is full-feature with no card, so you can run a few real readings here before deciding whether it replaces anything.
Yes, 14 days with every feature unlocked and no card.
Upload your .SFcht file and see your practice in one place.
Start free, no card neededLast reviewed 28 September 2026.