# Sentra AI vs Argus

The clearest difference is in-app purchases: Sentra AI at none against Argus's 2. Argus's advantage is update cadence (every 3 weeks vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Argus sells 2 in-app purchases, starting at $7.99 per 7 days. Sentra AI asks for nothing beyond the download.

Sentra AI ships an update every 5 weeks, Argus every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sentra AI | Argus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/argus-hidden-camera-detector/id6790475588/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 38 MB | 35 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Bizz Technologies LTD](https://appshunter.io/developer/1824310328) | [Roman Hadiiev](https://appshunter.io/developer/6790475860) |

## What reviewers say

### Sentra AI

[App page](https://appshunter.io/ios/app/sentra-ai/id6770271162)

**In-app purchases:** none


### Argus

[App page](https://appshunter.io/ios/app/argus-hidden-camera-detector/id6790475588)

Detect hidden cameras and trackers in any room using multiple scanning methods. It offers Wi-Fi, Bluetooth, lens, infrared, and magnet detection to ensure privacy in various locations like hotels and rentals. The app prioritizes user privacy with no account required and local data storage.

**Highlights:** Wi-Fi scanner for network devices, Bluetooth tracker locator, Lens camera finder mode, Infrared mode for night-vision cameras, Magnet check for hidden electronics, Privacy-focused with no account needed

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Sentra AI free?

Sentra AI is free to download, with no in-app purchases.

### Is Argus free?

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

### Do Sentra AI or Argus have ads?

Neither Sentra AI nor Argus shows ads.

### Which is updated more often, Sentra AI or Argus?

Sentra AI ships an update every 5 weeks, and Argus every 3 weeks. Most recently, Sentra AI was updated on October 24, 2026 and Argus 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.*