# L22 Spectro

> L22 Spectro (iPhone/iPad app by Jacek Krawczykowski.)

- Source: https://appshunter.io/ios/app/l22-spectro/id6781178385 (this page in markdown: same URL + `.md`)
- Developer: [Jacek Krawczykowski](https://appshunter.io/developer/6781178387)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 19 MB
- Languages: American English
- Released: 2026-06-23
- Data updated: 2026-10-14

## What is L22 Spectro?

L22 Spectro is a professional application for controlling and operating the L22 spectrometer.

The app communicates with the spectrometer over a local Wi-Fi connection and allows users to perform spectral measurements, manage calibration data, and view measurement results directly on an iPhone or iPad.

L22 Spectro is intended for professional users working with lighting measurement, spectral analysis, colorimetric verification, and quality control of lighting systems.

Main features:
- Communication with the L22 spectrometer over local Wi-Fi
- Spectral measurement control
- Calibration data handling
- Display of spectral and colorimetric measurement results
- Professional workflow for lighting and measurement applications

Full measurement functionality requires an external L22 spectrometer device connected to the same local Wi-Fi network.

## Is L22 Spectro safe?

Not enough ratings yet to assess L22 Spectro.

## Is L22 Spectro legit?

L22 Spectro has limited verification signals. The AppsHunter Legitimacy Score for L22 Spectro is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 0.1.3 — 2026-09-28

• Added Bluetooth Low Energy (BLE) connectivity
• Added Wi-Fi Host connection mode
• Added Compare mode for comparing current measurements with a reference measurement
• Measurements from History can now be set as a reference
• Improved calibration data verification and transfer
• Improved connection stability and communication with the spectrometer
• Added measurement units to displayed parameters
• Improved user interface and general application stability

### 0.1.2 — 2026-09-04

• Added measurement descriptions.
• Improved measurement history and sharing.
• Added parameter explanations.
• Added manual calibration download.
• Minor stability and usability improvements.

### 0.1.1 — 2026-07-22

Added measurement history, live mode, filter curve measurement, PNG/CSV export, and improved file sharing on iOS/iPad.

### 0.1.0 — 2026-06-23

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-14.*