# Mosquitone Detector vs FaceGuard

The clearest difference is price: FaceGuard at Free against Mosquitone Detector's $7.99. FaceGuard also leads on update cadence (every 4 months vs every 9 months) and iOS requirement (17.0 vs 26.2). On ads, in-app purchases and device support there is nothing between them.

FaceGuard is free to download; Mosquitone Detector costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mosquitone Detector ships an update every 9 months, FaceGuard every 4 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Mosquitone Detector | FaceGuard |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[2.1 (13 ratings)](https://appshunter.io/ios/app/mosquitone-detector/id1289567807/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 2 MB | 4 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [MINERVA, INC.](https://appshunter.io/developer/1148827383) |

## What reviewers say

### Mosquitone Detector

[App page](https://appshunter.io/ios/app/mosquitone-detector/id1289567807)

This sound measurement app detects high-frequency and ultrasonic noises that are inaudible to humans. It helps identify potentially harmful noise sources, especially those used to deter pests or young people. The app offers modes to detect and pinpoint the direction of these sounds.

**Highlights:** High frequency and ultrasonic sound detection, Peak frequency display, Sound source direction search (360 degrees), Selectable frequency bands (8-16 kHz, 16-23 kHz), Adjustable gain ranges, Measurement screen rotation

**In-app purchases:** none


### FaceGuard

[App page](https://appshunter.io/ios/app/faceguard-hide-faces/id6763490498)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mosquitone Detector free?

Mosquitone Detector costs $7.99, with no in-app purchases.

### Is FaceGuard free?

FaceGuard is free to download, with no in-app purchases.

### Do Mosquitone Detector or FaceGuard have ads?

Neither Mosquitone Detector nor FaceGuard shows ads.

### Which is updated more often, Mosquitone Detector or FaceGuard?

Mosquitone Detector ships an update every 9 months, and FaceGuard every 4 months. Most recently, Mosquitone Detector was updated on September 18, 2026 and FaceGuard on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*