Galactica Luxmeter vs uSpectrum PAR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Galactica Luxmeter
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.
- Illumination measurement (direct/reflected)
- Combine readings with photos
- Add comments to measurements
- Save and email measurements
- Manual calibration coefficient adjustment
- Manual result adjustment
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If you professionally deal with lighting or simply want to measure the illumination of the certain place, and you do not have a special device, you can use this application to make light measuring, combine the values obtained (lux) with a photo of your place of measurement, add your comments and save your image in photo album or send via e-mail. This app is used for evaluative light measuring and is not a substitute for specialized device. Features: Illumination measurement mode selection: direct or reflected light. The ability to change manually the calibration coefficient (Optional). Ability to change manually the results of measurement (Optional).
uSpectrum PAR
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.
- 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
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uSpectrum PAR is a wireless controller application for UPRtek handheld Spectral PAR Meter which provides 6 main features, namely Basic, Spectrum, PPFD Spectrum, CIE1931, CIE1976, and, CRI. Supported Devices ・PG200N (≧ FW Ver.1.1.0.B25) # uSpectrum PAR will continuously add more supported devices in the future. Connect to Handheld Spectral PAR Meter via Bluetooth ・To remotely analyze light source target. ・To remotely configure the "Integration Mode" of device ・To save the captured data of device. More Features ・To show Spectrum, PPFD Spectrum, CIE1931, CIE1976, CRI diagram of the data(*.xls), which was generated from UPRTek handheld spectral PAR meter. ・To see more information of light source, such as LUX, CCT, CRI, x, y, λp, and λpV. ・To see more information of absorption of light source, such as PPFD, PFD, PFD-R, PFD-G, and, PFD-B. ・To share the measured data via email.
Screenshots
Verdict
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.
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. 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.
| Parameter | Galactica Luxmeter | uSpectrum PAR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (3 ratings) — better | 1.0 (3 ratings) |
| Positive reviews | 53.8% of reviews | — |
| Number of ratings | 3 | 3 |
| Update frequency | Every 10 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 6.0 — better | 9.0 |
| Further details — not scored | ||
| Size | 3 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Flint Soft Ltd. | United Power Research Technology Corporation |
Customer experience
Galactica Luxmeter
uSpectrum PAR
In-app purchases
Galactica Luxmeter
No in-app purchases
uSpectrum PAR
No in-app purchases
Questions
Is Galactica Luxmeter free?
Is uSpectrum PAR free?
Which has better reviews, Galactica Luxmeter or uSpectrum PAR?
Do Galactica Luxmeter or uSpectrum PAR have ads?
Which is updated more often, Galactica Luxmeter or uSpectrum PAR?
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