Astrolabe Clock vs Light Pollution Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Astrolabe Clock
This app offers a modern interpretation of an ancient astronomical instrument, providing a real-time view of the sky. It displays the time of day, day of the year, and the positions of celestial bodies like the Sun, Moon, planets, and stars. Users can also track sunrise/sunset times, moon phases, and celestial transits.
- Real-time sky view
- Time of day and day of year display
- Sun, Moon, planet, and star locations
- Sunrise and sunset times
- Moon phase tracking
- Celestial transit times
- Eclipse occurrence indicator
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Astrolabe Clock is an astronomical clock inspired by the astrolabe, an ancient astronomical instrument used to tell time and to predict the location of the Sun, stars and planets. This modern interpretation gives a view of the sky showing at a glance the time of day, day of year, and the location in the sky of the Sun, Moon, planets and stars. Astrolabe Clock also gives the time of sunrise and sunset, the phase of the Moon, transit times for the Sun, Moon, planets and stars, and can be used to show the occurrence of solar and lunar eclipses.
Light Pollution Map
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Light Pollution Map – Find the Darkest Skies Discover the best places for stargazing, astrophotography, and Milky Way viewing with Light Pollution Map. Explore interactive light pollution maps, check Bortle Scale ratings, monitor weather and moon conditions, and plan unforgettable nights under the stars. Whether you're an amateur astronomer, a professional astrophotographer, or simply looking for a dark place to enjoy the night sky, Light Pollution Map provides the tools you need to find ideal observing locations anywhere in the world. Features • Interactive worldwide light pollution map • View Bortle Scale ratings from Class 1 to Class 9 • Find nearby dark sky locations • Search by city, address, coordinates, or landmark • Multiple map styles including satellite and terrain • Current location support with GPS • Save favorite observing locations • Cloud cover and weather forecasts • Moon phase, moonrise, and moonset information • Sunrise, sunset, and astronomical twilight times • Milky Way visibility planner • Aurora forecast for supported regions • Elevation and terrain information • Distance measurement tools • Offline map support for remote adventures • Observation journal with notes and photos • Trip planning for astronomy and photography sessions • Widgets for moon phase and observing conditions Perfect For • Astrophotography • Stargazing • Astronomy • Camping • National park adventures • Night landscape photography • Meteor shower observation • Milky Way photography • Aurora hunting • Outdoor exploration Plan your next night under the stars with confidence. Light Pollution Map helps you find darker skies, better viewing conditions, and unforgettable celestial experiences wherever your journey takes you. We currently offer the following auto-renewing subscription option: -$7.99 per month -$34.99 per month Payment will be charged to iTunes Account at confirmation of purchase. Your subscription will automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed and auto-renewal may be turned off by going to the Account Settings after purchase. No cancellation of the current subscription is allowed during active subscription period. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Terms of Use: https://tos.nguyenanhapps.com Privacy Policy: https://privacy.nguyenanhapps.com
Screenshots
Verdict
The clearest difference is in-app purchases: Astrolabe Clock at none against Light Pollution Map's 3. On price, 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
Both are free to download. Light Pollution Map sells 3 in-app purchases, starting at $7.99 per month. Astrolabe Clock asks for nothing beyond the download.
| Parameter | Astrolabe Clock | Light Pollution Map |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (48 ratings) — better | — |
| Positive reviews | 90.9% of reviews | — |
| Number of ratings | 48 — better | — |
| Update frequency | Every 4 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Smith | Nguyen Anh |
In-app purchases
Astrolabe Clock
No in-app purchases
Light Pollution Map
- Light Pollution Map Premium Monthly$7.991 Month
- Light Pollution Map Premium Yearly$34.991 Year
- LightPollution Map Premium Lifetime$49.99






