# Galactica Luxmeter vs uSpectrum PAR

The clearest difference is rating: Galactica Luxmeter at 4.0 against uSpectrum PAR's 1.0. Galactica Luxmeter also leads on iOS requirement (6.0 vs 9.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Galactica Luxmeter holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

Galactica Luxmeter ships an update every 10 months, uSpectrum PAR every 8 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Galactica Luxmeter | uSpectrum PAR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/galactica-luxmeter/id666846635/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/uspectrum-par/id1466017397/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 8 months** |
| Monetization | Free | Free |
| Size | 3 MB | 25 MB |
| Requires iOS | **6.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Flint Soft Ltd.](https://appshunter.io/developer/666846638) | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) |

## What reviewers say

### Galactica Luxmeter

[App page](https://appshunter.io/ios/app/galactica-luxmeter/id666846635)

Measure illumination levels in a location using your device. Combine lux readings with photos and comments, then save or share your findings. Ideal for professionals or anyone needing to assess lighting conditions.

**Highlights:** Illumination measurement (direct/reflected), Combine readings with photos, Add comments to measurements, Save and email measurements, Manual calibration coefficient adjustment, Manual result adjustment

**In-app purchases:** none


### uSpectrum PAR

[App page](https://appshunter.io/ios/app/uspectrum-par/id1466017397)

This application connects wirelessly to a handheld spectral PAR meter, allowing remote analysis and configuration of light sources. It displays detailed spectral data, light source information, and absorption metrics, with options to save and share measurements.

**Highlights:** Wireless Bluetooth connection, Remote light source analysis, Save captured data, Display spectrum and CIE diagrams, View light source metrics (LUX, CCT, CRI), Share measured data via email

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Galactica Luxmeter free?

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

### Is uSpectrum PAR free?

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

### Which has better reviews, Galactica Luxmeter or uSpectrum PAR?

Galactica Luxmeter is rated higher. Galactica Luxmeter averages 4.0 out of 5 from 3 ratings, while uSpectrum PAR averages 1.0 from 3 ratings.

### Do Galactica Luxmeter or uSpectrum PAR have ads?

Neither Galactica Luxmeter nor uSpectrum PAR shows ads.

### Which is updated more often, Galactica Luxmeter or uSpectrum PAR?

Galactica Luxmeter ships an update every 10 months, and uSpectrum PAR every 8 months. Most recently, Galactica Luxmeter was updated on November 1, 2026 and uSpectrum PAR on November 3, 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.*