LightSpectrum Pro vs Clear Spaces
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.
Clear Spaces
Personalize your device's home and lock screens with transparent widgets and custom elements. Organize information like weather, music, and time, and add quotes or stickers for a unique look. Easily switch between different styles and automate changes with shortcuts.
- Basic Transparent Spaces
- Widget overlays (Weather, Now Playing, Time/Date)
- Add quotes and stickers
- Multiple Clear Spaces Styles
- Lock Screen Transparent Spaces
- Automate with Shortcuts
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Clear Spaces provides you with a wealth of customization options allowing you to create Basic Transparent Spaces, with the option to add Widget overlays to display quick information such as Weather, Now Playing and Time / Date. Clear Spaces also allows you to add quotes and stickers to your Home Screen. With the ability to make multiple Clear Spaces Styles, you can add all your different wallpapers into Clear Spaces and change your widgets with a tap, or automate it all with a Shortcut. Clear Spaces also takes customization to the Lock Screen with Transparent Spaces on the Lock Screen to allow you to move your widgets wherever you want. If you have any questions, feel free to reach out at support@clearspaces.uk or @clearspaces_ on Twitter.
Screenshots
Verdict
The clearest difference is rating: LightSpectrum Pro at 4.1 against Clear Spaces's 3.3. LightSpectrum Pro also leads on price ($1.99 vs $2.99). Clear Spaces's advantage is update cadence (every 4 days vs every 3 months) and ratings volume (589 vs 39). On ads, in-app purchases, monetization model and device support 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
LightSpectrum Pro costs $1.99 and Clear Spaces $2.99 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 3.3. That said, the two scores are not equally well evidenced: Clear Spaces has 589 ratings behind it against 39, so its average is the more settled of the two. Written reviews complicate that: 28% of LightSpectrum Pro's written reviews are positive against 38% of Clear Spaces's, so the app with the better star average is not the one people write more warmly about.
LightSpectrum Pro ships an update every 3 months, Clear Spaces every 4 days. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.
| Parameter | LightSpectrum Pro | Clear Spaces |
|---|---|---|
| Price | $1.99 — better | $2.99 |
| Rating | 4.1 (39 ratings) — better | 3.3 (589 ratings) |
| Positive reviews | 28.5% of reviews | 37.7% of reviews — better |
| Number of ratings | 39 | 589 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 88 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | AM PowerSoftware | Eden Software Limited |
Customer experience
LightSpectrum Pro
Clear Spaces
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)
Clear Spaces
From 589 App Store ratingsWhat we love
- 👍 Clean and minimalist design
- 🚀 Easy to set up and use
- 💡 Allows for custom widget placement
- 🔒 No data collection
Room to improve
- 🐛 Widgets not aligning properly with wallpaper
- 🐛 Time/battery widgets not updating automatically
- 🐛 Crashes when editing text widgets
- 🔋 Potential battery drain issues
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
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- 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
Clear Spaces
Reported bugs
4 issues- Incompatibility with iOS 15 and newer devices
- Widget labels not removable in recent updates
- Inconsistent widget behavior across different iOS versions
- Freezing/crashing issues on some devices
Requested features
4 requests- More widget customization options (fonts, colors, sizes)
- Support for iPad and larger iPhone models
- Ability to delete/remove old widget presets
- Integration with Focus modes and dynamic wallpapers
In-app purchases
LightSpectrum Pro
No in-app purchases
Clear Spaces
No in-app purchases
Questions
Is LightSpectrum Pro free?
Is Clear Spaces free?
Which has better reviews, LightSpectrum Pro or Clear Spaces?
Do LightSpectrum Pro or Clear Spaces have ads?
Which is updated more often, LightSpectrum Pro or Clear Spaces?
Other comparisons
