# CLIU — This is not a mask

> This is not a mask (iPhone/iPad app by CLIU srl.)

- Source: https://appshunter.io/ios/app/cliu/id1554285375 (this page in markdown: same URL + `.md`)
- Developer: [CLIU srl](https://appshunter.io/developer/1554285377)
- Category: Health & Fitness
- Price: Free
- Age rating: 12+
- Requires: iOS 12.0 · 79 MB
- Languages: English
- Released: 2021-05-21
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/cliu/id1554285375/reviews.md

## What is CLIU?

CLIU app is the official application of CLIU Mask. 

Through the app, you can verify the authenticity of your CLIU products and access additional features. Main features: 
- Product authenticity check
- Air quality analysis

Features dedicated to the CLIU Mask Pro product:
- Breath quality analysis
- Charging status monitoring
- Usage time analysis with suggestions for filter replacement

Download now


## Version history (last 1 release)

### 1.6 — 2021-08-19

- added French language
- minor changes

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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 2026-05-19.*