# Light Pollution Map vs Mapply for Open Street Map

The clearest difference is price: Mapply for Open Street Map at Free against Light Pollution Map's $4.99. Mapply for Open Street Map also leads on update cadence (weekly vs every 3 months). Light Pollution Map's advantage is review sentiment (57% vs 14%) and ads (none vs shown). On rating, ratings volume, in-app purchases and device support there is nothing between them.

Mapply for Open Street Map is free to download; Light Pollution Map costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.1 for Light Pollution Map against 4.1 for Mapply for Open Street Map. Both are backed by a comparable volume of ratings — 47 and 53 respectively. Written reviews are what separate them: 57% of Light Pollution Map's written reviews are positive against 14% of Mapply for Open Street Map's.

Light Pollution Map ships an update every 3 months, Mapply for Open Street Map weekly. Both last shipped on October 27, 2026.

## The numbers

| Metric | Light Pollution Map | Mapply for Open Street Map |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.1 (47 ratings)](https://appshunter.io/ios/app/light-pollution-map/id1530464858/reviews)** | [4.1 (53 ratings)](https://appshunter.io/ios/app/mapply-for-open-street-map/id1591409886/reviews) |
| Number of ratings | 47 | **53** |
| Positive reviews | **57.1% of reviews** | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | **#56** | — |
| Size | 20 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Jurij Stare](https://appshunter.io/developer/1530464860) | [Florian Chrometz](https://appshunter.io/developer/1004595008) |

## What reviewers say

### Light Pollution Map

[App page](https://appshunter.io/ios/app/light-pollution-map/id1530464858)

**Currently charting:** #56 Top Paid · Navigation (US App Store)

Visualize sky brightness data, including VIIRS and SQM measurements, to understand light pollution levels. Explore various overlays like cloud coverage, aurora forecasts, and observatory locations. Offers offline access to essential maps.

**Highlights:** VIIRS, Sky Brightness, World Atlas, Cloud, Aurora layers, Color blind friendly color options, Cloud animation, SQM/SQC readings submission, International dark sky parks overlay, Offline mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Mapply for Open Street Map

[App page](https://appshunter.io/ios/app/mapply-for-open-street-map/id1591409886)

Explore detailed maps of the world, including transport networks, hiking trails, and topography. This app leverages OpenStreetMap and other specialized map layers for comprehensive navigation and outdoor adventure planning. Enjoy offline caching for uninterrupted exploration.

**Highlights:** OpenStreetMap integration, Specialized map layers (cycling, transport, sea, trails), Topographical data, Railway information, Offline caching, Satellite views

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Light Pollution Map free?

Light Pollution Map costs $4.99, with no in-app purchases.

### Is Mapply for Open Street Map free?

Mapply for Open Street Map is free to download, with no in-app purchases.

### Which has better reviews, Light Pollution Map or Mapply for Open Street Map?

Light Pollution Map is rated higher. Light Pollution Map averages 4.1 out of 5 from 47 ratings, while Mapply for Open Street Map averages 4.1 from 53 ratings.

### Do Light Pollution Map or Mapply for Open Street Map have ads?

Mapply for Open Street Map shows ads; Light Pollution Map does not.

### Which is updated more often, Light Pollution Map or Mapply for Open Street Map?

Light Pollution Map ships an update every 3 months, and Mapply for Open Street Map weekly. Most recently, Light Pollution Map was updated on October 27, 2026 and Mapply for Open Street Map on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*