Comparison

ColorMeter vs Light Spectrometer Wavelength

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ColorMeter

Connects to a colorimeter via Bluetooth to capture and analyze color data. It measures various color parameters, compares colors using different formulas, and allows for storage and retrieval of color data.

Highlights
  • Bluetooth colorimeter connection
  • Color data capture and analysis
  • Multiple color parameter measurements
  • Color comparison with various formulas
  • Color data storage and database
  • Color lookup and matching
Features
Read full description

主要功能: 1、通过蓝牙连接测色仪,采集颜色数据,设置测色仪参数,对仪器进行校准等操作。 2、测量颜色数据,包含反射率、CIE-LABCH、三刺激值XYZ、Yxy、RGB、密度(A/T/M/E)、同色异谱、遮盖力、白度、黄度、黑底、力分、着色力、色牢度等颜色参数。 3、颜色比较,判断颜色是否合格,多种色差公式(ΔE*ab,ΔE*94,ΔE*00,ΔEcmc等)。 4、颜色存储,能够轻松的建立自己的颜色数据,并将颜色数据保存到颜色数据库中。 5、颜色查找,测量一个颜色,可以快速的在颜色数据库中间找到最接近的颜色数据。

About

Light Spectrometer Wavelength

This application analyzes light to determine its dominant wavelength in nanometers, frequency in terahertz, and period length in femtoseconds. It provides real-time measurements and allows users to save their findings with notes. The app is designed for measuring colored light sources.

Highlights
  • Measures dominant wavelength (nm)
  • Measures frequency (THz)
  • Measures period length (fs)
  • Real-time measurement
  • Save measurements with notes
  • Optional calibration
Features
Read full description

Measures light spectrum to determine the dominant wavelength in nm, frequency in THz and period length in fs. DOMINANT WAVELENGTH Dominant wavelength is a concept commonly used in the field of color science and perception. It refers to the wavelength of light that appears most prominent or dominant in a given color mixture or light source. In other words, it is the wavelength that our eyes perceive as the primary color in a mixture of different wavelengths. For light with only one wavelength, such as the light from a colored LED, the dominant wavelength corresponds to the wavelength of that light. KEY FEATURES • High accuracy • Real-time measurement • Measures light wavelength in nanometers (nm) • Measures light frequency in terahertz (Thz) • Measures light period length in femtoseconds (fs) • Easy to use • Save measurements with notes • Supports 40 languages, including english • Optional calibration for enhanced precision MEASURING 1. Find a white surface, such as a plain piece of white paper 2. Point your camera at the surface illuminated by your target light source 3. The app gives you accurate measurements in real-time LIMITATIONS Smartphone cameras have limitations when it comes to distinguishing between different very short, or very long wavelengths. More specifically, on many devices the accuracy below 465 nm and above 610 nm is very limited. This is due to the physical camera sensors in the devices. An automatic warning appears on the screen for these short and long wavelengths. WHITE LIGHT Note that is not meaningful to measure the dominant wavelength of white light as white light consists of a wide range of wavelengths, with no wavelength dominating. This app is made for measuring colored light. If you are interested in determining the color temperature of white light, please instead use our popular White Balance Kelvin Meter app. COLOR OF SURFACES If you want to measure the color of a surface or material, rather than of light, please instead use our popular Colorimeter Camera Color Meter app. Privacy Policy, https://spectrometer.contechity.com/pp.html End User License Agreement, https://spectrometer.contechity.com/eula.html CONTACT I value your feedback. Email me at apps@contechity.com with any suggestions or questions. Download the Spectrometer now!

Screenshots

ColorMeter4 screens
Light Spectrometer Wavelength4 screens

Verdict

The call

The clearest difference is rating: Light Spectrometer Wavelength at 4.2 against ColorMeter's 1.7. Light Spectrometer Wavelength also leads on review sentiment (72% vs 42%) and ratings volume (92 vs 7). ColorMeter's advantage is in-app purchases (none vs 7) and iOS requirement (11.0 vs 15.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Light Spectrometer Wavelength sells 4 in-app purchases, starting at $0.99 per month. ColorMeter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Light Spectrometer Wavelength holds the better App Store score, 4.2 against 1.7. That said, the two scores are not equally well evidenced: Light Spectrometer Wavelength has 92 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 42% of ColorMeter's written reviews are positive against 72% of Light Spectrometer Wavelength's.

UpkeepUpdate frequency

ColorMeter ships an update every 5 weeks, Light Spectrometer Wavelength every 2 months. The most recent releases landed on August 17, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
ColorMeter versus Light Spectrometer Wavelength: the parameters behind the verdict, then further details
ParameterColorMeterLight Spectrometer Wavelength
PriceFreeFree
Rating1.7 (7 ratings)4.2 (92 ratings) — better
Positive reviews41.7% of reviews71.9% of reviews — better
Number of ratings792 — better
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size111 MB43 MB
Age rating4+4+
Developer坤 杨Contechity AB

Customer experience

ColorMeter

All ratings7 ratings
Positive14.3%
Neutral0.0%
Negative85.7%
Written reviews12 reviews
Positive41.7%
Neutral0.0%
Negative58.3%

Light Spectrometer Wavelength

All ratings92 ratings
Positive80.4%
Neutral3.3%
Negative16.3%
Written reviews32 reviews
Positive71.9%
Neutral3.1%
Negative25.0%

In-app purchases

None

ColorMeter

No in-app purchases

4 purchases

Light Spectrometer Wavelength

Subscriptions3
  • Full Access7 Days trial$0.991 Month
  • Full access14 Days trial$0.991 Month
  • Full access$4.991 Year
One-time1
  • Full access4 variants$6.99

Questions

Is ColorMeter free?
ColorMeter is free to download, with no in-app purchases.
Is Light Spectrometer Wavelength free?
Light Spectrometer Wavelength is free to download, with in-app purchases available.
Which has better reviews, ColorMeter or Light Spectrometer Wavelength?
Light Spectrometer Wavelength is rated higher. ColorMeter averages 1.7 out of 5 from 7 ratings, while Light Spectrometer Wavelength averages 4.2 from 92 ratings.
Do ColorMeter or Light Spectrometer Wavelength have ads?
Neither ColorMeter nor Light Spectrometer Wavelength shows ads.
Which is updated more often, ColorMeter or Light Spectrometer Wavelength?
ColorMeter ships an update every 5 weeks, and Light Spectrometer Wavelength every 2 months. Most recently, ColorMeter was updated on August 17, 2026 and Light Spectrometer Wavelength on September 22, 2026.

Other comparisons