LightSpectrum Pro vs SmallGoGo
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
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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.
SmallGoGo
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.
- Wireless control of fill lights
- Automated parameter adjustment
- Improved work efficiency
- Manual adjustment alternative
- Smartphone control
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SmallGoGo APP is a convenient control tool for photography enthusiasts. The advantage is based on the wireless control operation of photography fill light, freeing the trouble of traditional manual adjustment equipment. Users only need to send instructions through the APP, and the device will automatically set parameters according to the instructions of the APP, so as to improve the work efficiency of photography enthusiasts.
Screenshots
Verdict
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 review sentiment (28% vs 15%). 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
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 4, 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.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.
| Parameter | LightSpectrum Pro | SmallGoGo |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.1 (39 ratings) — better | 1.0 (4 ratings) |
| Positive reviews | 28.5% of reviews — better | 15.0% of reviews |
| Number of ratings | 39 — better | 4 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #41 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 88 MB | 122 MB |
| Age rating | 4+ | 4+ |
| Developer | AM PowerSoftware | Shenzhen Leqi Innovation Co., Ltd. |
Customer experience
LightSpectrum Pro
SmallGoGo
User reviews
LightSpectrum Pro
From 39 App Store ratingsWhat we love
- 📸 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
Room to improve
- 🐛 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)
SmallGoGo
From 4 App Store ratingsWhat we love
- 👍 Works with RC60c
- 👍 Works with RM75 (after update)
- 👍 Controls multiple lights
- 👍 App controls FX presets
- 👍 Good value for money
Room to improve
- 🐛 Frequent crashes
- 🐛 Unreliable connection
- 🐛 Slow performance
- 🐛 Difficult to control multiple lights
- 🐛 Poor user interface
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
SmallGoGo
Reported bugs
25 issues- App crashes on startup
- App crashes when adjusting intensity
- App crashes when adding equipment
- App crashes when changing from CCT to FX
- App crashes when connecting to RM75
Show 20 moreShow fewer
- App crashes when trying to access control
- App crashes when syncing with lights
- 'Add Equipment' button unresponsive
- Lights not connecting
- Lights disconnecting frequently
- Settings not saving
- Settings carrying over between lights
- Login code timed out
- App not recognizing lights after reset
- Bluetooth connection issues
- Brightness slider not scaling
- Multiple Bluetooth connections cause crashes
- App closes immediately after opening
- Equipment not showing up in list
- App requires login every time
- App requires internet access for use
- App not working after update
- App not showing lights after update
- App stuck on loading screen
- RGB graph inaccurate
Requested features
8 requests- Complete overhaul of the app
- Fix bugs
- Improve stability and speed
- Better UI/UX design
- Easier control of multiple lights
Show 3 moreShow fewer
- Allow connection without account
- Improve login process
- Make app more intuitive
In-app purchases
LightSpectrum Pro
No in-app purchases
SmallGoGo
No in-app purchases
