# NSI CO Monitor — user reviews

> 1 indexed App Store user reviews of NSI CO Monitor by National Comfort Institute, Inc..

- Source: https://appshunter.io/ios/app/nsi-co-monitor/id1479590527/reviews
- App overview in markdown: https://appshunter.io/ios/app/nsi-co-monitor/id1479590527.md

## Most critical reviews (1 lowest-rated)

### 1/5 — Doesn’t work

*2026-01-13*

Says my monitor needs activation, and the “Pro” app crashes when trying to activate it, so it can’t be activated. The contractor wasn’t sure what to do.

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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 2026-06-01.*