# LightSpectrum Pro vs PenRemote

The clearest difference is price: PenRemote at Free against LightSpectrum Pro's $1.99. LightSpectrum Pro's advantage is update cadence (every 3 months vs every 21 months) and chart position (#63 vs unranked). On ads, in-app purchases and device support there is nothing between them.

PenRemote 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 ships an update every 3 months, PenRemote every 21 months. Both last shipped on October 10, 2026.

## The numbers

| Metric | LightSpectrum Pro | PenRemote |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.1 (39 ratings)](https://appshunter.io/ios/app/lightspectrum-pro/id468368751/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 28.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 21 months |
| Monetization | Free | — |
| Best chart rank | **#63** | — |
| Size | 88 MB | 1 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AM PowerSoftware](https://appshunter.io/developer/303958914) | [MORELLO TEQ SAS DI MINICHIELLO LUCIANO & C.](https://appshunter.io/developer/1794970229) |

## What reviewers say

### LightSpectrum Pro

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

**Currently charting:** #63 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


### PenRemote

[App page](https://appshunter.io/ios/app/penremote/id532997227)

**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 PenRemote free?

PenRemote is free to download, with no in-app purchases.

### Do LightSpectrum Pro or PenRemote have ads?

Neither LightSpectrum Pro nor PenRemote shows ads.

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

LightSpectrum Pro ships an update every 3 months, and PenRemote every 21 months. Most recently, LightSpectrum Pro was updated on October 10, 2026 and PenRemote on October 10, 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.*