# Authenticator Duo vs Hidden Camera Detector Pro.

The clearest difference is review sentiment: Authenticator Duo at 100% against Hidden Camera Detector Pro.'s 33%. Authenticator Duo also leads on rating (5.0 vs 4.1). Hidden Camera Detector Pro.'s advantage is monetization model (free with in-app purchases vs subscription) and update cadence (daily vs every 2 days). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Authenticator Duo sells 2 in-app purchases, starting at $6.99 per 7 days and Hidden Camera Detector Pro. sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Authenticator Duo holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 14 and 27 respectively. Written reviews point the same way: 100% of Authenticator Duo's written reviews are positive against 33% of Hidden Camera Detector Pro.'s.

Authenticator Duo ships an update every 2 days, Hidden Camera Detector Pro. daily. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Authenticator Duo | Hidden Camera Detector Pro. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (14 ratings)](https://appshunter.io/ios/app/authenticator-duo-two-factor/id6504300892/reviews)** | [4.1 (27 ratings)](https://appshunter.io/ios/app/hidden-camera-detector-pro/id6670554981/reviews) |
| Number of ratings | 14 | **27** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 20 MB | 17 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Quentin Powell](https://appshunter.io/developer/1751779133) | [Peppi Sperl](https://appshunter.io/developer/1766722375) |

## What reviewers say

### Authenticator Duo

[App page](https://appshunter.io/ios/app/authenticator-duo-two-factor/id6504300892)

Secure your online accounts with this app that generates and stores two-factor authentication codes. It offers end-to-end encryption, Face ID/Touch ID access, and encrypted iCloud backups for easy restoration across devices. Operate securely offline and import existing tokens.

**Highlights:** Generate and store 2FA/MFA tokens, Scan QR codes or manually input codes, End-to-end encryption for all codes, Face ID & Touch ID access, Encrypted iCloud backups, Offline operation, Import existing tokens

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription with trial | $6.99 | per 7 days |
| Weekly subscription | $6.99 | per 7 days |


### Hidden Camera Detector Pro.

[App page](https://appshunter.io/ios/app/hidden-camera-detector-pro/id6670554981)

This app helps you find hidden cameras in various locations using your smartphone's camera and network scanning. It offers features like reflection detection, infrared scanning, and Wi-Fi analysis to enhance your privacy and security.

**Highlights:** Camera detection via reflections, Infrared light detection, Wi-Fi network scanning for devices, Bluetooth device detection (premium), Special camera filters (premium), Intuitive user interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| hiddenCameraWeeklyTrial | $6.99 | per 7 days |
| hiddenCameraMonthlyTrial | $14.99 | per month |
| hiddenCameraYearlyTrial | $31.99 | per year |


## Frequently asked questions

### Is Authenticator Duo free?

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

### Is Hidden Camera Detector Pro. free?

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

### Which has better reviews, Authenticator Duo or Hidden Camera Detector Pro.?

Authenticator Duo is rated higher. Authenticator Duo averages 5.0 out of 5 from 14 ratings, while Hidden Camera Detector Pro. averages 4.1 from 27 ratings.

### Do Authenticator Duo or Hidden Camera Detector Pro. have ads?

Neither Authenticator Duo nor Hidden Camera Detector Pro. shows ads.

### Which is updated more often, Authenticator Duo or Hidden Camera Detector Pro.?

Authenticator Duo ships an update every 2 days, and Hidden Camera Detector Pro. daily. Most recently, Authenticator Duo was updated on October 2, 2026 and Hidden Camera Detector Pro. on October 3, 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.*