Stargraph Pro vs AstroFinder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stargraph Pro
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The Stargraph Pro companion app pairs with the Stargraph hardware to bring push-to telescope guidance right to your phone. Featuring an advanced guidance system, Stargraph will help you align your telescope with targets in the night sky regardless of their visibility. The most powerful features include: - Helping you quickly align with any star, no matter your skill level - Teaching you about the stars you're looking at - Providing a built-in planetarium that is keyed to your telescope - Operating with remarkable accuracy across most telescope setups - Compatible with your standard altitude-azimuth, Dobsonian, and equatorial telescope mounts - And the system learns as you use it, getting progressively more accurate throughout your session
AstroFinder
Transform your iPhone into a telescope finder without motors or alignment stars. It identifies star patterns in real-time, displaying your aim on a red-on-black chart with a guiding arrow. Find planets, deep sky objects, and more, all while running offline.
- Real-time telescope pointing
- Plate-solving star identification
- Night-vision friendly interface
- Offline operation
- Finds planets, deep sky objects, and stars
- Alt-azimuth and equatorial modes
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**AstroFinder turns your iPhone into a plate-solving push-to finder for any telescope — no motors, no alignment stars, no setting circles.** Clamp your phone beside the scope. AstroFinder takes a short exposure of the real sky, identifies the star pattern the way a research plate-solver does, and repeats about once a second — so you always know exactly where you're pointed. A red-on-black star chart shows your aim live, and a simple arrow guides you onto whatever you want to see. **Find anything** • Planets, Sun and Moon — sorted by what's up right now • Deep sky by catalog number — Messier, NGC, IC, and more, on a keyboard-free keypad • Named stars and showpiece double stars • "Best this month" — well-placed showpieces for your location, tonight, nearest to where you're already aimed **Built for the eyepiece** • Fully night-vision friendly: red on black, dimmable below the phone's own minimum • Alt-azimuth mode for Dobsonians (no field rotation) or equatorial mode for tracking mounts • Tap any object on the chart for details, then push-to it • Optional constellation lines, labels, and progressive zoom as you close in • Works in portrait or landscape, at any mounting angle **How it works** AstroFinder mounts alongside your telescope and syncs to your eyepiece in seconds. From then on, the chart and all guidance are aligned to your scope's actual aim. Everything runs on-device — no internet needed under the stars. A one-month free trial gives you a full new-moon cycle to try it. Subscription then renews yearly; cancel anytime. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.santangeli.net/astrofinder/privacy Clear skies.
Screenshots
Verdict
The clearest difference is in-app purchases: Stargraph Pro at none against AstroFinder's 1. Stargraph Pro also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. AstroFinder sells 1 in-app purchase, starting at $12.99 per year. Stargraph Pro asks for nothing beyond the download.
Stargraph Pro ships an update every 2 weeks, AstroFinder every 9 days. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.
| Parameter | Stargraph Pro | AstroFinder |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 41 MB | 90 MB |
| Age rating | 4+ | 4+ |
| Developer | Josh Cole | Peter Santangeli |
In-app purchases
Stargraph Pro
No in-app purchases
AstroFinder
- AstroFinder Yearly1 Month trial$12.991 Year
Questions
Is Stargraph Pro free?
Is AstroFinder free?
Do Stargraph Pro or AstroFinder have ads?
Which is updated more often, Stargraph Pro or AstroFinder?
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