# カメラスキャン vs QuietAlert

The clearest difference is in-app purchases: カメラスキャン at none against QuietAlert's 3. カメラスキャン also leads on iOS requirement (8.0 vs 26.0). QuietAlert's advantage is update cadence (every 12 months vs every 27 months). On price, ads and device support there is nothing between them.

Both are free to download. QuietAlert sells 3 one-off in-app purchases. カメラスキャン asks for nothing beyond the download.

カメラスキャン ships an update every 27 months, QuietAlert every 12 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | カメラスキャン | QuietAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.8 (16 ratings)](https://appshunter.io/ios/app/quietalert/id1030822316/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 43.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 12 months** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 18 MB |
| Requires iOS | **8.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [eXTEM Software Japan, Inc.](https://appshunter.io/developer/379390988) | [Yasushi Sakai](https://appshunter.io/developer/454423149) |

## What reviewers say

### カメラスキャン

[App page](https://appshunter.io/ios/app/id602962649)

**Features:** macOS Compatibility

**In-app purchases:** none


### QuietAlert

[App page](https://appshunter.io/ios/app/quietalert/id1030822316)

This utility app notifies you of timer completion using LED flashes and vibration, ideal for quiet environments like libraries or trains. It offers customizable vibration frequencies and optional sound alerts, even playing through headphones.

**Highlights:** LED flash and vibration alerts, Customizable vibration frequency, Background operation, Optional beep on completion, Headphone-only sound output, Custom alarm sound support, Widget alarm stop

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound Option | $1.99 | one-time |
| Alarm Option | $1.99 | one-time |
| Widget Option | $1.99 | one-time |


## Frequently asked questions

### Is カメラスキャン free?

カメラスキャン is free to download, with no in-app purchases.

### Is QuietAlert free?

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

### Do カメラスキャン or QuietAlert have ads?

Neither カメラスキャン nor QuietAlert shows ads.

### Which is updated more often, カメラスキャン or QuietAlert?

カメラスキャン ships an update every 27 months, and QuietAlert every 12 months. Most recently, カメラスキャン was updated on October 26, 2026 and QuietAlert on October 24, 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.*