# Spy vs Sound Recognition

The clearest difference is rating: Spy at 4.5 against Sound Recognition's 1.0. Spy also leads on ads (none vs shown) and ratings volume (1.1K vs 1). Sound Recognition's advantage is in-app purchases (none vs 6). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Spy sells 6 in-app purchases, starting at $4.99 per 7 days. Sound Recognition asks for nothing beyond the download.

Spy holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Spy has 1.1K ratings behind it against 1, so its average is the more settled of the two.

Spy ships an update every 4 weeks, Sound Recognition every 2 weeks. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Spy | Sound Recognition |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.1K ratings)](https://appshunter.io/ios/app/spy-hidden-camera-detector/id6443639758/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sound-recognition/id6504954671/reviews) |
| Number of ratings | **1.1K** | 1 |
| Positive reviews | 45.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 26 MB | 36 MB |
| Requires iOS | 16.0 | **15.8.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [6Hive OU](https://appshunter.io/developer/1537357804) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Spy

[App page](https://appshunter.io/ios/app/spy-hidden-camera-detector/id6443639758)

This app uses advanced network scanning to detect hidden cameras in your vicinity with high accuracy. It identifies suspicious devices transmitting data and can help you locate them. Protect your privacy by scanning Wi-Fi networks for unauthorized surveillance equipment.

**Highlights:** Detects hidden cameras with 99.9% accuracy, Scans Wi-Fi networks for suspicious devices, Identifies cameras transmitting data, Helps locate hidden cameras, Advanced network tooling

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Membership | $4.99 | per 7 days |
| Weekly Premium Membership | $4.99 | per 7 days |
| Spy Yearly Premium Membership | $19.99 | per year |
| Yearly Premium Membership | $29.99 | per year |
| Lifetime Premium Membership | $39.99 | one-time |
| Lifetime Premium Membership | $59.99 | one-time |

**What reviewers like**

- 👍 Amazing app
- 🔒 Great for security
- 💡 Useful for finding hidden cameras

**What reviewers complain about**

- 🐛 Doesn't work
- 💰 Pricey
- 🚫 Scam/fraud

**Reported bugs**

- Bugs in the app
- Subscription issues
- Compatibility problems

**Requested features**

- Better instructions
- Free trial option


### Sound Recognition

[App page](https://appshunter.io/ios/app/sound-recognition/id6504954671)

This utility app notifies users with a screen change and light when a specific target voice is recognized. It also displays the most likely speech recognition result, including its type and evaluation value.

**Highlights:** Voice recognition alerts, Screen and light notification, Displays speech recognition results, Configurable recognition threshold

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spy free?

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

### Is Sound Recognition free?

Sound Recognition is free to download, with no in-app purchases.

### Which has better reviews, Spy or Sound Recognition?

Spy is rated higher. Spy averages 4.5 out of 5 from 1.1K ratings, while Sound Recognition averages 1.0 from 1 ratings.

### Do Spy or Sound Recognition have ads?

Sound Recognition shows ads; Spy does not.

### Which is updated more often, Spy or Sound Recognition?

Spy ships an update every 4 weeks, and Sound Recognition every 2 weeks. Most recently, Spy was updated on October 27, 2026 and Sound Recognition on October 7, 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.*