Comparison

Galactica Luxmeter vs uSpectrum PAR

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Illumination measurement (direct/reflected)
  • Combine readings with photos
  • Add comments to measurements
  • Save and email measurements
  • Manual calibration coefficient adjustment
  • Manual result adjustment
Read full description

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).

About

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.

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
Read full description

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

Galactica Luxmeter3 screens
uSpectrum PAR4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Galactica Luxmeter versus uSpectrum PAR: the parameters behind the verdict, then further details
ParameterGalactica LuxmeteruSpectrum PAR
PriceFreeFree
Rating4.0 (3 ratings) — better1.0 (3 ratings)
Positive reviews53.8% of reviews—
Number of ratings33
Update frequencyEvery 10 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS6.0 — better9.0
Further details — not scored
Size3 MB25 MB
Age rating4+4+
DeveloperFlint Soft Ltd.United Power Research Technology Corporation

Customer experience

Galactica Luxmeter

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews13 reviews
Positive53.8%
Neutral7.7%
Negative38.5%

uSpectrum PAR

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Galactica Luxmeter

No in-app purchases

None

uSpectrum PAR

No in-app purchases

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.

Other comparisons