# High-Frequency Noise Monitor — user reviews

> 2 indexed App Store user reviews of High by TOON,LLC, rated 3.30/5 from 4 ratings.

- Source: https://appshunter.io/ios/app/high-frequency-noise-monitor/id1588823574/reviews
- App overview in markdown: https://appshunter.io/ios/app/high-frequency-noise-monitor/id1588823574.md
- Rating breakdown: 5★ 1 · 4★ 1 · 3★ 1 · 2★ 0 · 1★ 1

## Most critical reviews (2 lowest-rated)

### 1/5 — Difficult to use

*2025-09-29*

Instructions very brief making the app useless to the average  individual trying to verify if there is a a source of high frequency noise. (Ruling out tinnitus vs high frequency noise in the home).

**Developer response:** This app is designed to monitor the frequency components of high-frequency sounds in real time. 
For simply detecting high-frequency noises, we recommend our “Mosquitone Detector” app. It can detect and visualize high-frequency noises. Additionally, it features a search mode that can display the direction of the high-frequency sound source that detected the highest sound level on the radar display (pie chart).

### 5/5 — No customers…

*2026-04-01*

Every time you update this app, you throw away 1000’s of potential customers. Not all people will update their phones to the latest iOS. I don’t, and I won’t be updating again. Ever. Many can’t update, but don’t need a new phone, or can’t afford to. 

The app looks no different, so only supporting the latest iOS is not necessary, surely??

Anyway… it’s a good app. It works well, and I like it. But I suppose this is the last update I will receive. Not a big problem I think. Thank you.

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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 2026-08-27.*