Spy vs Sound Recognition
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spy
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.
- 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
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Hidden Camera Finder is the only tool with 99.9% accuracy of detecting spy cameras! Our engineers have developed advanced network tooling to detect hidden cameras in your network. How does it work? Make sure you’re connect to the Wi-Fi network of the place you are visiting and tap on ‘Start Scanning’ and let our tool do the work. Our algorithm will scan your network and find out any device that is online. Using our advanced technology, the cameras will be marked as suspicious on the list. It will detect any cameras which are transmitting data to its owner or creating records. You can even connect to the hidden camera and locate its position! Premium Subscription info: Price: - Auto-renewable subscription : 1 Week - Per Week ($4.99), 1 Year - Per Year ($19.99) - One-time Purchase ($49.99) - Payment will be charged to your iTunes account at confirmation of purchase. - Subscriptions will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. - The account will be charged for renewal within 24-hours before the end of the current period, and identify the cost of the renewal. - Your account will be following your plan, within 24 hours before the end of the current period. - You can manage or turn off auto-renew in your Apple ID account settings any time after purchase. - This price is for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Privacy Policy: https://revoo.studio/privacy-policy.html Terms of Use: https://revoo.studio/terms-of-service.html
Sound Recognition
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.
- Voice recognition alerts
- Screen and light notification
- Displays speech recognition results
- Configurable recognition threshold
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When the selected recognition target voice is recognized, user will be notified by a screen change and light. *Notification will be made only if the evaluation value exceeds the preset recognition threshold. It also displays the most likely speech recognition result (type, evaluation value) among the current speech recognition results.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Spy | Sound Recognition |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.1K ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 45.3% of reviews | — |
| Number of ratings | 1.1K — better | 1 |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.8.3 — better |
| Further details — not scored | ||
| Size | 26 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | 6Hive OU | Hideaki Uchikoshi |
Customer experience
Spy
Sound Recognition
Bugs and requests
Spy
Reported bugs
3 issues- Bugs in the app
- Subscription issues
- Compatibility problems
Requested features
2 requests- Better instructions
- Free trial option
Sound Recognition
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Spy
- Weekly Premium Membership$4.997 Days
- Weekly Premium Membership3 Days trial$4.997 Days
- Spy Yearly Premium Membership$19.991 Year
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- Yearly Premium Membership$29.991 Year
- Lifetime Premium Membership$39.99
- Lifetime Premium Membership$59.99
Sound Recognition
No in-app purchases
Questions
Is Spy free?
Is Sound Recognition free?
Which has better reviews, Spy or Sound Recognition?
Do Spy or Sound Recognition have ads?
Which is updated more often, Spy or Sound Recognition?
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