# Atomic Spectra vs Dark Sky Meter Pro

The clearest difference is review sentiment: Atomic Spectra at 100% against Dark Sky Meter Pro's 0%. Atomic Spectra also leads on rating (5.0 vs 2.0) and price ($1.99 vs $4.99). Dark Sky Meter Pro's advantage is update cadence (every 6 months vs every 19 months) and chart position (#194 vs unranked). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Atomic Spectra costs $1.99 and Dark Sky Meter Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Atomic Spectra holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of Atomic Spectra's written reviews are positive against 0% of Dark Sky Meter Pro's.

Atomic Spectra ships an update every 19 months, Dark Sky Meter Pro every 6 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Atomic Spectra | Dark Sky Meter Pro |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/atomic-spectra/id6444901660/reviews)** | [2.0 (2 ratings)](https://appshunter.io/ios/app/dark-sky-meter-pro/id6755680551/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 6 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#194** |
| Size | 7 MB | 5 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jim Haungs](https://appshunter.io/developer/1498282259) | [DDQ](https://appshunter.io/developer/418328467) |

## What reviewers say

### Atomic Spectra

[App page](https://appshunter.io/ios/app/atomic-spectra/id6444901660)

This reference app provides detailed information on strong line atomic emission spectra within the visible range. Users can search for elements by name, symbol, or atomic number and inspect individual spectra lines. It offers interactive features to visualize and navigate spectral data.

**Highlights:** Visible range spectra (380-740nm), Search by element name, symbol, or atomic number, Sort by name, symbol, or spectra line count, Inspect individual spectra lines, Interactive spectrum visualization

**Features:** Vision Pro support

**In-app purchases:** none


### Dark Sky Meter Pro

[App page](https://appshunter.io/ios/app/dark-sky-meter-pro/id6755680551)

**Currently charting:** #194 Top Paid · Education (US App Store)

This app uses your iPhone's camera to measure sky brightness, providing scientific readings for light pollution. Track measurements, compare sites, and plan stargazing with cloud forecasts and astronomical data.

**Highlights:** Sky brightness measurement (SQM, Bortle, NELM), Device-specific calibration, Save and sync measurements locally, Export data to CSV, Cloud forecast for planning, Sky quality map comparison, Sunrise, sunset, and moon phase data

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

**In-app purchases:** none


## Frequently asked questions

### Is Atomic Spectra free?

Atomic Spectra costs $1.99, with no in-app purchases.

### Is Dark Sky Meter Pro free?

Dark Sky Meter Pro costs $4.99, with no in-app purchases.

### Which has better reviews, Atomic Spectra or Dark Sky Meter Pro?

Atomic Spectra is rated higher. Atomic Spectra averages 5.0 out of 5 from 1 ratings, while Dark Sky Meter Pro averages 2.0 from 2 ratings.

### Do Atomic Spectra or Dark Sky Meter Pro have ads?

Neither Atomic Spectra nor Dark Sky Meter Pro shows ads.

### Which is updated more often, Atomic Spectra or Dark Sky Meter Pro?

Atomic Spectra ships an update every 19 months, and Dark Sky Meter Pro every 6 months. Most recently, Atomic Spectra was updated on October 23, 2026 and Dark Sky Meter Pro on October 25, 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.*