Astrograph Software (TimePassages): Desktop vs Mobile vs Online
"Astrograph software" usually refers to TimePassages, the astrology program published at astrograph.com by astrologer Henry Seltzer — not a generic category of software. It ships in three forms: a desktop program for Windows and macOS, mobile apps for iPhone and Android, and a browser-based online version. If you want the deepest chart work and don't mind installing software, the desktop edition is the one to buy; if you mainly want your birth chart, daily transits, and compatibility checks on the go, the mobile or online version covers that without a download.
What TimePassages actually is
TimePassages is a chart-and-interpretation program. The site describes reading a chart as being "as easy as visiting a website" — you click on any chart feature and get in-depth interpretations written by Henry Seltzer. It's positioned for both ends of the market: the site says it's "perfect for beginners, as well as professional astrologers such as Rob Brezsny, Alan Oken, Antero Alli, Lyn Borsodi," who use the Advanced Edition for their work.
That dual positioning is the key to choosing a version: the question isn't just which device, it's how deep into chart technique you plan to go.
The three versions compared
| Desktop (Windows/macOS) | Mobile (iPhone/Android) | Online | |
|---|---|---|---|
| Install | Download and install | App store install | Nothing to install — browser |
| Core use | Full chart reading and professional work | Birth chart, daily transits, progressions, compatibility | Current astrology, personal dashboard, saved charts |
| Interpretations | Click any chart feature for Seltzer's interpretations | Expert interpretations plus a glossary of terms | Fully interpreted current chart |
| Cross-device | — | — | Saved charts accessible from any device |
| Entry price | From $79.00 (Standard Edition on sale at 30% off at time of writing) | Not stated on the page | Sign-up based; pricing not stated on the page |
The desktop page lists a Buy Now from $79.00 option alongside a Free Download, and mentions a 30% off sale on the Desktop Standard Edition. The mobile and online sections describe features but the page does not state their prices — so don't assume the app or online tier is free just because the desktop has a free download.
Which one fits you
Choose desktop if you're doing serious chart work — the Advanced Edition is what the professional astrologers named on the site use, and the click-to-interpret chart interface is built for reading charts in depth rather than glancing at them.
Choose mobile if you want astrology as a daily habit: the page highlights tracking daily transits, diving into progressions, and comparing charts for compatibility, plus a glossary for learning terms as you go.
Choose online if you want access from multiple devices. The online version explicitly offers saved charts "for all your friends and family" reachable "from any device," plus settings to change house calculations, displayed points, and aspect options — useful if you move between computers.
A practical path: start with the free birth chart the site offers (email signup, described as free chart plus weekly insights and personalized horoscopes) to test whether the interpretation style suits you, then decide between the $79 desktop Standard Edition and the mobile/online options.
Before you buy
- Check the sale clock. The 30% desktop discount shown on the page had a stated end date ("Sale Ends October 3 at Midnight PST"). Prices and promotions change, so confirm the current figure on the site.
- Confirm what "Free Download" includes. A free download is not the same as a free full version — verify whether it's a trial, a limited edition, or a viewer before relying on it.
- Ask about cross-device sync if that matters to you. The online version advertises saved charts across devices; the page doesn't say the desktop and mobile versions share the same chart library, so don't assume they do.
- Match the edition to your level. If you're a beginner, the Standard Edition's click-to-interpret approach is likely enough. If you're doing client work, look into the Advanced Edition features before paying for the wrong tier.
Payment on the site runs through Stripe, and the page shows both "Buy Now" and subscription language — so check whether what you're buying is a one-time license or a recurring plan.