LightSpectrum Pro vs Light Master Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LightSpectrum Pro
Measure light source color temperature and spectrum accurately without expensive equipment. View the color spectrum from 360nm to 800nm, and analyze the white point on the CIE 1931 diagram. Overlay filtered wavelengths on camera images to see frequency reflections and intensity.
- Color temperature measurement
- Color spectrum analysis (360nm-800nm)
- CIE 1931 white point display
- Wavelength filtering and overlay
- High accuracy compared to professional devices
Read full descriptionHide full description
With LightSpectrumPro EVO you can measure the color temperature of a light source without having to spend hundreds of dollars on professional devices. LightSpectrumPro EVO has an error of 2 - 8% compared to existing professional products on the market. in addition to the color temperature measurement in Kelvin, LightSpectrumPro EVO allows you to view the color spectrum of the light being examined with a band ranging from 360nm to 800nm. in addition to the spectrum it is possible to display the position of the white point on the CIE 1931 diagram and to apply a filter for wavelengths to display in overlay on the image captured by the cameras which elements reflect a specific frequency and with what intensity.
Light Master Pro
This utility app provides photometric measurements for compatible smart BLE devices. It offers readings for illumination, color temperature, color coordinates, CRI, and flicker. It requires a specific device to function.
- Illumination measurement
- Color temperature readings
- Color coordinate analysis
- CRI measurement
- Flicker detection
Read full descriptionHide full description
The app was developed to work with portable smart BLE device. It provides readable interface for photometric measurement, including illumination, color temperature and color coordinates, CRI and flicker measurement, depends on your device. *For device with 3.5mm earphone socket, please download 【Light Master】
Screenshots
Verdict
The clearest difference is price: Light Master Pro at Free against LightSpectrum Pro's $1.99. Light Master Pro also leads on iOS requirement (10.0 vs 15.6). LightSpectrum Pro's advantage is rating (4.1 vs 2.1) and review sentiment (28% vs 0%). On update cadence, ads, in-app purchases and monetization model 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
Light Master Pro is free to download; LightSpectrum Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LightSpectrum Pro holds the better App Store score, 4.1 against 2.1. Both are backed by a comparable volume of ratings — 39 and 10 respectively. Written reviews point the same way: 28% of LightSpectrum Pro's written reviews are positive against 0% of Light Master Pro's.
LightSpectrum Pro ships an update every 3 months, Light Master Pro every 4 months. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.
| Parameter | LightSpectrum Pro | Light Master Pro |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.1 (39 ratings) — better | 2.1 (10 ratings) |
| Positive reviews | 28.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 39 — better | 10 |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #14 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 88 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | AM PowerSoftware | Opple Lighting Co., Ltd. |
Customer experience
LightSpectrum Pro
Light Master Pro
Bugs and requests
LightSpectrum Pro
Reported bugs
11 issues- App crashes on startup or during use
- Camera feed not accessible or showing red X icon
- Screen blinking/flashing on first launch
- UI elements cut off on larger screens
- Buttons unresponsive or sticky
Show 6 moreShow fewer
- App freezes and cannot be exited
- Black screen on launch
- Inconsistent readings that change rapidly
- App stuck on opening screen
- Camera focus issues on iPhone X and newer models
- Incompatibility with iOS 5, 6, and newer iPhone models
Requested features
11 requests- Spot metering with crosshairs or target reticle
- Direct DUV (Delta uv) display calculation
- Flicker detection for light sources
- Calibration function for improved accuracy
- Support for fluorescent light preset adjustments
Show 6 moreShow fewer
- Tap-to-focus camera control
- Landscape orientation support
- Ability to disable tutorial tips
- Screenshot capability in landscape mode
- Better documentation and user guide
- Device compatibility information in app store listing
Light Master Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
LightSpectrum Pro
No in-app purchases
Light Master Pro
No in-app purchases
Questions
Is LightSpectrum Pro free?
Is Light Master Pro free?
Which has better reviews, LightSpectrum Pro or Light Master Pro?
Do LightSpectrum Pro or Light Master Pro have ads?
Which is updated more often, LightSpectrum Pro or Light Master Pro?
Other comparisons
