# CO2 Check — user reviews

> 2 indexed App Store user reviews of CO2 Check by CO2 CHECK LLC, rated 2.80/5 from 15 ratings.

- Source: https://appshunter.io/ios/app/co2-check/id1578623635/reviews
- App overview in markdown: https://appshunter.io/ios/app/co2-check/id1578623635.md
- Rating breakdown: 5★ 5 · 4★ 1 · 3★ 2 · 2★ 0 · 1★ 7

## Most critical reviews (2 lowest-rated)

### 1/5 — VERY BADDDDD

*2025-03-23*

It doesn’t work, don’t use it, don’t download it, it’s a waste of time

### 1/5 — THE APP DOES NOT WORK!!

*2024-06-25*

This is my first time ever using the app….ever. After downloading, I went to create an account when I got to the password it said the password that I created didn’t work!!! I then tried to change it(although I am new to the app) after erasing password and replacing it with new one it says my email address already has a exiting account. I thought that was strange, so I then go to log in and press “forgot password” and get a notification saying email with instructions have been sent! But I never actually got a email to reset. Sooo then I tried the exact same thing with 3 different email addresses and got the same results 3 different times!! There a glitch or error, somebody needs to fix it!!

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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 2026-08-12.*