# Hidden Camera Detector vs Duovigintuple Calc

The clearest difference is in-app purchases: Duovigintuple Calc at none against Hidden Camera Detector's 4. Duovigintuple Calc also leads on update cadence (every 2 weeks vs monthly). Hidden Camera Detector's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Hidden Camera Detector sells 4 in-app purchases, starting at $5.99 per 7 days. Duovigintuple Calc asks for nothing beyond the download.

Hidden Camera Detector ships an update monthly, Duovigintuple Calc every 2 weeks. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Hidden Camera Detector | Duovigintuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.9K ratings)](https://appshunter.io/ios/app/hidden-camera-detector-finder/id1645273817/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | 82.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 186 MB | 36 MB |
| Requires iOS | 16.0 | **15.8.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Davit Kipiani](https://appshunter.io/developer/1713519749) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Hidden Camera Detector

[App page](https://appshunter.io/ios/app/hidden-camera-detector-finder/id1645273817)

This app helps you find hidden cameras and spy devices using your phone's sensors and network scanning. It also offers features to track your Bluetooth devices, mask private conversations, and secure evidence of suspicious findings.

**Highlights:** Detect hidden cameras with filters, Track Bluetooth devices, Scan for suspicious devices, Mask private conversations, Secure evidence storage, Detect devices with magnetometer

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $5.99 | per 7 days |
| Hidden camera finder | $10.99 | per month |
| Hidden camera finder - premium | $19.99 | per 3 months |
| Spy Detector | $29.99 | per year |

**What reviewers like**

- 🚀 Accurate detection
- 👍 Easy to use
- 🔒 Helpful for security
- 🚀 Quick scanning
- 👍 Useful features

**What reviewers complain about**

- 🔒 Requires paid subscription to access all features
- 🐛 Inconsistent device identification
- 🐛 Limited information on detected devices

**Reported bugs**

- Geolocation issues
- Inability to edit device names

**Requested features**

- More detailed device information
- Visual locator for detected devices
- Microphone detection capability


### Duovigintuple Calc

[App page](https://appshunter.io/ios/app/duovigintuple-calc/id6742525847)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Camera Detector free?

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

### Is Duovigintuple Calc free?

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

### Do Hidden Camera Detector or Duovigintuple Calc have ads?

Duovigintuple Calc shows ads; Hidden Camera Detector does not.

### Which is updated more often, Hidden Camera Detector or Duovigintuple Calc?

Hidden Camera Detector ships an update monthly, and Duovigintuple Calc every 2 weeks. Most recently, Hidden Camera Detector was updated on September 24, 2026 and Duovigintuple Calc on September 9, 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.*