# Light Spectrometer Wavelength

> Spectrum Analyzer Spectroscope

Canonical page: [https://chrome-stats.com/d/id6450930820](https://chrome-stats.com/d/id6450930820)

## Overview

- **ID:** `id6450930820`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Contechity AB
- **Category:** Utilities
- **Rating:** 4.20 / 5 (93 ratings)
- **Version:** 3.8.0
- **Last updated:** 2026-09-01
- **First published:** 2023-07-14
- **Size:** 43 MB
- **Data as of:** 2026-09-26
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/light-spectrometer-wavelength/id6450930820)
- **Website:** [https://contechity.com](https://contechity.com/)
- **Privacy policy:** [https://spectrometer.contechity.com/pp.html](https://spectrometer.contechity.com/pp.html)

## Description

Light Spectrometer Wavelength is a real-time spectrum analyzer that measures the dominant wavelength of light, along with its frequency and period. It is ideal for analyzing colored LEDs and other light sources, offering high accuracy, real-time readings, and the option to save measurements with notes. It supports 40 languages and optional calibration for enhanced precision.

Key features include measurements in nanometers (nm), terahertz (THz), and femtoseconds (fs); easy-to-use controls; calibration; note saving; and warnings about camera limitations at extreme wavelengths. Privacy policy and EULA are available via the provided links.

## Rankings

- #144,403 — Overall

## Review summary

Overall, users find Light Spectrometer Wavelength easy to use and capable of measuring wavelengths, including UV, with helpful developer support. However, recurring concerns include pricing/paywall frustrations, inconsistent color accuracy under real lighting, and a desire for more complete spectral data (RGB) plus a trial option before purchase. The app is useful for casual measurements but may not meet precision needs or all feature expectations.

### Pros

- Easy to use spectrometer app
- Useful for measuring wavelength / nm
- Works well for UV lamp testing and similar use
- Responsive developer with updates to improve resolution
- Perceived fair pricing / transparent fees (lifetime option noted)

### Cons

- Pricing controversy: bait-and-switch / paywalls
- Color accuracy issues in real-world lighting (e.g., blue appearing orange; purple/green indistinguishable)
- Limited spectral data: focuses on the dominant color and lacks RGB
- No trial or demo before paying

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6450930820)