# Dark Sky Meter vs Oud

The clearest difference is price: Oud at Free against Dark Sky Meter's $1.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Oud is free to download; Dark Sky Meter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Dark Sky Meter ships an update every 3 months, Oud every 4 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Dark Sky Meter | Oud |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/dark-sky-meter/id602989060/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 40.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 4 MB | 70 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [DDQ](https://appshunter.io/developer/418328467) | [Vlaamse overheid](https://appshunter.io/developer/664577169) |

## What reviewers say

### Dark Sky Meter

[App page](https://appshunter.io/ios/app/dark-sky-meter/id602989060)

This application utilizes your device's camera to measure the brightness of the night sky. The collected data can be optionally shared with scientific researchers worldwide.

**Highlights:** Measures sky brightness, Uses device camera, Optional data sharing, Contributes to scientific research

**Features:** Vision Pro support

**In-app purchases:** none


### Oud

[App page](https://appshunter.io/ios/app/oud-heverlee/id1562977663)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dark Sky Meter free?

Dark Sky Meter costs $1.99, with no in-app purchases.

### Is Oud free?

Oud is free to download, with no in-app purchases.

### Do Dark Sky Meter or Oud have ads?

Neither Dark Sky Meter nor Oud shows ads.

### Which is updated more often, Dark Sky Meter or Oud?

Dark Sky Meter ships an update every 3 months, and Oud every 4 months. Most recently, Dark Sky Meter was updated on October 26, 2026 and Oud 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.*