Luminos vs Smart Telescope Planner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Luminos
This astronomy companion app, after 12 years of updates, is being retired. A more advanced version, Luminos Pro, is available with new features and ongoing support. This version remains accessible for existing users.
- Astronomy software
- 12 years of updates
- Retired version
- Advanced version available (Luminos Pro)
- Continued support for existing customers
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Thank you for being a part of my journey with Luminos! As I strive to bring you the best in astronomical software, I want to let you know that, after 12 years of updates, this version of Luminos will be retired in 2023. But there's exciting news: I've developed Luminos Pro, an advanced version that offers even more amazing features and updates. To continue providing support and updates to my existing customers, this version will stay available in the App Store for now. I invite you to explore my latest features and designs in Luminos Pro and join me on this continuing adventure. See you in the stars! Clear skies, - John
Smart Telescope Planner
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BigSky Planner helps smart telescope users prepare an observing night before they head outside. Save your observing sites, set up your smart telescope, filter a bundled target catalog, and build a timed plan for the night. Target cards show magnitude, object type, first view time, time in view, azimuth and altitude. Details adds capture guidance for your default telescope, with Min, Opt and Best integration times and filter-aware notes. Key features - Save and reuse observing sites, and mark a default - Smart telescope profiles with altitude, timing and Equatorial Mode limits for each model - Filter targets by catalog, magnitude, object type, altitude and azimuth, with exact catalog-number search - Planets, the Moon and comets - One target card per object, with its common name - Build Plan places every selected target across its Clear Sky, so the times overlap. Balance Plan and Use Priority set the time shares - An alert when a capture is shorter than 30 minutes, with a longer seat or a replacement to choose from - Weather from NOAA in the United States and MET Norway elsewhere, with no account or key. Open-Meteo works with your own key. - Save, reopen, print and share plans - Back up on iPhone or iPad and restore on a Mac or Windows PC, or the other way around - Text follows your iPhone or iPad text size - Light and dark appearance, an illustrated Help guide and a full PDF manual Free download with a 20-day free trial BigSky Planner is free to download and includes a free 20-day trial. After the trial, Full Access is a one-time in-app purchase: no subscription and no automatic charge. Your saved sites and plans are kept. If you bought the app before it became free, you keep Full Access with no additional purchase. Purchase questions: support@bigskyastro.com. Your data stays on your device. No account is required.
Screenshots
Verdict
The clearest difference is price: Smart Telescope Planner at Free against Luminos's $19.99. Luminos's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement 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
Smart Telescope Planner is free to download; Luminos costs $19.99 up front. Smart Telescope Planner sells 2 one-off in-app purchases. Luminos asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 29, 2026.
| Parameter | Luminos | Smart Telescope Planner |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 4.8 (1.1K ratings) — better | — |
| Positive reviews | 90.6% of reviews | — |
| Number of ratings | 1.1K — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 930 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Wobbleworks LLC | Richard Derry |
Bugs and requests
Luminos
Reported bugs
4 issues- Motion tracking and compass not working properly
- Saved telescope settings erased after updates
- Slow response times and location detection issues
- Inconsistent behavior when tapping on objects
Requested features
8 requests- Add historical constellations
- Integrate national borders when searching
- Include exoplanets information
- Improve motion tracking and orientation
- Add observation forecast based on weather conditions
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- Provide automatic sky rotation to match the real-time view
- Enhance moon surface details and shadows
- Add ability to center on objects while in orbit mode
Smart Telescope Planner
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Luminos
No in-app purchases
Smart Telescope Planner
- 20-day TrialFree
- Full Access$9.99






