# LightSpectrum Pro vs SmallGoGo

The clearest difference is price: SmallGoGo at Free against LightSpectrum Pro's $1.99. SmallGoGo also leads on iOS requirement (13.0 vs 15.6). LightSpectrum Pro's advantage is rating (4.1 vs 1.0) and ratings volume (39 vs 3). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

SmallGoGo 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 1.0. That said, the two scores are not equally well evidenced: LightSpectrum Pro has 39 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 28% of LightSpectrum Pro's written reviews are positive against 15% of SmallGoGo's.

LightSpectrum Pro ships an update every 3 months, SmallGoGo every 2 months. The most recent releases landed on September 22, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | LightSpectrum Pro | SmallGoGo |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.1 (39 ratings)](https://appshunter.io/ios/app/lightspectrum-pro/id468368751/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/smallgogo/id1571101760/reviews) |
| Number of ratings | **39** | 3 |
| Positive reviews | **28.5% of reviews** | 15.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Best chart rank | **#118** | — |
| Size | 88 MB | 120 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AM PowerSoftware](https://appshunter.io/developer/303958914) | [Shenzhen Leqi Innovation Co., Ltd.](https://appshunter.io/developer/1571101762) |

## What reviewers say

### LightSpectrum Pro

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

**Currently charting:** #118 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


### SmallGoGo

[App page](https://appshunter.io/ios/app/smallgogo/id1571101760)

Control your photography fill lights wirelessly from your smartphone. Adjust parameters automatically via app instructions, improving efficiency for photography enthusiasts. Frees you from traditional manual equipment adjustments.

**Highlights:** Wireless control of fill lights, Automated parameter adjustment, Improved work efficiency, Manual adjustment alternative, Smartphone control

**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 SmallGoGo free?

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

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

LightSpectrum Pro is rated higher. LightSpectrum Pro averages 4.1 out of 5 from 39 ratings, while SmallGoGo averages 1.0 from 3 ratings.

### Do LightSpectrum Pro or SmallGoGo have ads?

Neither LightSpectrum Pro nor SmallGoGo shows ads.

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

LightSpectrum Pro ships an update every 3 months, and SmallGoGo every 2 months. Most recently, LightSpectrum Pro was updated on September 22, 2026 and SmallGoGo on August 12, 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.*