# LightSpectrum Pro vs TradeSimuFx

The clearest difference is review sentiment: TradeSimuFx at 95% against LightSpectrum Pro's 28%. TradeSimuFx also leads on rating (4.8 vs 4.1) and update cadence (every 10 days vs every 3 months). LightSpectrum Pro's advantage is monetization model (free vs paid) and chart position (#81 vs unranked). On price, ads, in-app purchases and device support there is nothing between them.

LightSpectrum Pro costs $1.99 and TradeSimuFx $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TradeSimuFx holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 39 and 11 respectively. Written reviews point the same way: 28% of LightSpectrum Pro's written reviews are positive against 95% of TradeSimuFx's.

LightSpectrum Pro ships an update every 3 months, TradeSimuFx every 10 days. Both last shipped on October 18, 2026.

## The numbers

| Metric | LightSpectrum Pro | TradeSimuFx |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | [4.1 (39 ratings)](https://appshunter.io/ios/app/lightspectrum-pro/id468368751/reviews) | **[4.8 (11 ratings)](https://appshunter.io/ios/app/tradesimufx/id1516365841/reviews)** |
| Number of ratings | **39** | 11 |
| Positive reviews | 28.5% of reviews | **94.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | **Free** | Paid |
| Best chart rank | **#81** | — |
| Size | 88 MB | 26 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AM PowerSoftware](https://appshunter.io/developer/303958914) | [Shuhei Sakai](https://appshunter.io/developer/552746280) |

## What reviewers say

### LightSpectrum Pro

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

**Currently charting:** #81 Top Paid · Utilities (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


### TradeSimuFx

[App page](https://appshunter.io/ios/app/tradesimufx/id1516365841)

Practice forex trading with historical chart data and analysis tools. This simulator offers no real-money features, focusing solely on educational practice. Analyze past market movements and test trading strategies without financial risk.

**Highlights:** Historical forex chart playback, Practice trading without real money, Analysis tools, Support for 20 currency pairs, Multiple timeframes available, Fixed spread simulation

**In-app purchases:** none


## Frequently asked questions

### Is LightSpectrum Pro free?

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

### Is TradeSimuFx free?

TradeSimuFx costs $1.99, with no in-app purchases.

### Which has better reviews, LightSpectrum Pro or TradeSimuFx?

TradeSimuFx is rated higher. LightSpectrum Pro averages 4.1 out of 5 from 39 ratings, while TradeSimuFx averages 4.8 from 11 ratings.

### Do LightSpectrum Pro or TradeSimuFx have ads?

Neither LightSpectrum Pro nor TradeSimuFx shows ads.

### Which is updated more often, LightSpectrum Pro or TradeSimuFx?

LightSpectrum Pro ships an update every 3 months, and TradeSimuFx every 10 days. Most recently, LightSpectrum Pro was updated on October 18, 2026 and TradeSimuFx on October 18, 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.*