Light Spectrometer Wavelength
Contechity AB Utilities iPhoneiPadiPod touch
Light Spectrometer Wavelength is a free Utilities app for iPhone and iPad by Contechity AB. Rated 4.2/5 from 95 ratings. Requires iOS 15.0.
- Rating
- 4.2
- 95 ratings
- Price
- Free
- on the App Store
- Size
- 43 MB
- Age 4+
- Updated
- Sep 1
- 2026 · v3.8.0
Screenshots
About Light Spectrometer Wavelength
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 [email protected] with any suggestions or questions. Download the Spectrometer now!
Ratings & reviews
4.2
95 ratings
What’s new
Version 3.8.0 · Updated September 1, 2026
• Saved measurements can now be folded per date, giving you a better overview when you have many measurements. • Misc minor improvements. This feature was suggested by a user. Got an idea too? Share it in a review!
App privacy
The developer, Contechity AB, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Purchases: Purchase History
- Identifiers: User ID, Device ID
Used for: Analytics, App Functionality
Alternatives to Light Spectrometer Wavelength
Looking for apps like Light Spectrometer Wavelength? Here are 6 similar apps on the App Store. The highest rated is In. Licht Ultra-SpectrumMeter (5.0/5), and 5 of the 6 are free to download.
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OSpectrometer
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In. Licht Ultra-SpectrumMeter
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LightSpectrum Pro
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Light Meter: Lux-525 Pro
4.5
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NSP32 nanoLambda Spectrometer
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Epson Spectrometer
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Light Spectrometer Wavelength | 4.2 / 5 (95 ratings) | Free | September 1, 2026 | |
| OSpectrometer | 2.0 / 5 (4) | Free | May 12, 2026 | Compare |
| In. Licht Ultra-SpectrumMeter | 5.0 / 5 (1) | Free | Sep 24, 2026 | Compare |
| LightSpectrum Pro | 4.1 / 5 (39) | 1.99 USD | Jun 14, 2026 | Compare |
| Light Meter: Lux-525 Pro | 4.5 / 5 (116) | Free | Sep 9, 2026 | Compare |
| NSP32 nanoLambda Spectrometer | – | Free | Dec 13, 2025 | Compare |
| Epson Spectrometer | 5.0 / 5 (4) | Free | Jun 30, 2026 | Compare |