# LightSpectrum Pro vs Light Master Pro

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.

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.

## The numbers

| Metric | LightSpectrum Pro | Light Master Pro |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.1 (39 ratings)](https://appshunter.io/ios/app/lightspectrum-pro/id468368751/reviews)** | [2.1 (10 ratings)](https://appshunter.io/ios/app/light-master-pro/id1481752643/reviews) |
| Number of ratings | **39** | 10 |
| Positive reviews | **28.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | Free |
| Best chart rank | **#15** | — |
| Size | 88 MB | 33 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AM PowerSoftware](https://appshunter.io/developer/303958914) | [Opple Lighting Co., Ltd.](https://appshunter.io/developer/955299786) |

## What reviewers say

### LightSpectrum Pro

[App page](https://appshunter.io/ios/app/lightspectrum-pro/id468368751)

**Currently charting:** #15 Top Paid · Utilities, #129 Top Paid (US App Store)

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.

**Highlights:** Color temperature measurement, Color spectrum analysis (360nm-800nm), CIE 1931 white point display, Wavelength filtering and overlay, High accuracy compared to professional devices

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 📸 Accurate white balance measurement for photography
- 💡 Innovative spectrum analysis without expensive equipment
- 💰 Affordable alternative to $1,600+ professional color meters
- 📊 Detailed spectral graph visualization
- 🎯 Useful for photographers, videographers, and lighting professionals

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- 📱 Incompatible with many iPhone models (iPhone 5, 5S, 6, 6+, 11, X)
- ❌ Camera access problems on multiple devices
- 🎨 Inaccurate readings for certain light types (LEDs, low color temps)
- 🖥️ Poor UI scaling on larger screens (iPhone 6+, iPad)

**Reported bugs**

- 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

**Requested features**

- 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


### Light Master Pro

[App page](https://appshunter.io/ios/app/light-master-pro/id1481752643)

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.

**Highlights:** Illumination measurement, Color temperature readings, Color coordinate analysis, CRI measurement, Flicker detection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LightSpectrum Pro free?

LightSpectrum Pro costs $1.99, with no in-app purchases.

### Is Light Master Pro free?

Light Master Pro is free to download, with no in-app purchases.

### Which has better reviews, LightSpectrum Pro or Light Master Pro?

LightSpectrum Pro is rated higher. LightSpectrum Pro averages 4.1 out of 5 from 39 ratings, while Light Master Pro averages 2.1 from 10 ratings.

### Do LightSpectrum Pro or Light Master Pro have ads?

Neither LightSpectrum Pro nor Light Master Pro shows ads.

### Which is updated more often, LightSpectrum Pro or Light Master Pro?

LightSpectrum Pro ships an update every 3 months, and Light Master Pro every 4 months. Most recently, LightSpectrum Pro was updated on October 10, 2026 and Light Master Pro on October 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.*