# Mouth Detection vs Tone Generator

The clearest difference is in-app purchases: Mouth Detection at none against Tone Generator's 1. Mouth Detection also leads on update cadence (fortnightly vs every 5 months). Tone Generator's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tone Generator sells 1 one-off in-app purchase. Mouth Detection asks for nothing beyond the download.

Mouth Detection ships an update fortnightly, Tone Generator every 5 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Mouth Detection | Tone Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/mouth-detection/id6733226615/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Ad-supported | — |
| Size | 36 MB | 10 MB |
| Requires iOS | **17.7.2** | 18.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [IVANA RAST](https://appshunter.io/developer/1782298960) |

## What reviewers say

### Mouth Detection

[App page](https://appshunter.io/ios/app/mouth-detection/id6733226615)

This utility app focuses on detecting when a mouth is open. It identifies key points and landmarks related to the mouth.

**Highlights:** Detects mouth opening, Identifies facial landmarks, Focuses on mouth detection

**Features:** macOS Compatibility

**In-app purchases:** none


### Tone Generator

[App page](https://appshunter.io/ios/app/tone-generator-harmoniq/id6744338213)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Generator Premium | $6.99 | one-time |


## Frequently asked questions

### Is Mouth Detection free?

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

### Is Tone Generator free?

Tone Generator is free to download, with in-app purchases available.

### Do Mouth Detection or Tone Generator have ads?

Mouth Detection shows ads; Tone Generator does not.

### Which is updated more often, Mouth Detection or Tone Generator?

Mouth Detection ships an update fortnightly, and Tone Generator every 5 months. Most recently, Mouth Detection was updated on October 24, 2026 and Tone Generator on October 28, 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.*