# Hidden Device－Detector, Camera vs Measurement Notebook

The clearest difference is in-app purchases: Measurement Notebook at none against Hidden Device－Detector, Camera's 6. Measurement Notebook also leads on update cadence (every 2 weeks vs every 24 months). Hidden Device－Detector, Camera's advantage is iOS requirement (15.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Hidden Device－Detector, Camera sells 6 in-app purchases, starting at $6.99 per 7 days. Measurement Notebook asks for nothing beyond the download.

Hidden Device－Detector, Camera ships an update every 24 months, Measurement Notebook every 2 weeks. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Hidden Device－Detector, Camera | Measurement Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (81 ratings)](https://appshunter.io/ios/app/hidden-devicedetector-camera/id6587571133/reviews)** | — |
| Number of ratings | **81** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 24 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 11 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Piotr Kalita](https://appshunter.io/developer/1759390978) | [Thomas Portlock](https://appshunter.io/developer/1890094275) |

## What reviewers say

### Hidden Device－Detector, Camera

[App page](https://appshunter.io/ios/app/hidden-devicedetector-camera/id6587571133)

This app helps protect your privacy by detecting hidden cameras and covert devices using WiFi, Bluetooth, infrared, and magnetic scanning. It provides detailed information on detected devices and offers practical search tips to secure your environment.

**Highlights:** WiFi and Bluetooth network scanning, Infrared camera detection, Magnetic field detection, Detailed device analysis, Practical search tips

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hidden Device－Detector, Camera | $6.99 | per 7 days |
| Hidden Device－Detector, Camera | $9.99 | per 7 days |
| Hidden Device－Detector, Camera | $14.99 | per month |
| Hidden Device－Detector, Camera | $15.99 | per month |
| Hidden Device－Detector, Camera | $83.99 | per year |
| Camera Finder－Secret Home App | $99.99 | per year |


### Measurement Notebook

[App page](https://appshunter.io/ios/app/measurement-notebook/id6795632601)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Device－Detector, Camera free?

Hidden Device－Detector, Camera is free to download, with in-app purchases available.

### Is Measurement Notebook free?

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

### Do Hidden Device－Detector, Camera or Measurement Notebook have ads?

Both Hidden Device－Detector, Camera and Measurement Notebook show ads.

### Which is updated more often, Hidden Device－Detector, Camera or Measurement Notebook?

Hidden Device－Detector, Camera ships an update every 24 months, and Measurement Notebook every 2 weeks. Most recently, Hidden Device－Detector, Camera was updated on October 8, 2026 and Measurement Notebook on September 30, 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.*