# Know Your Contacts vs Hidden Camera Spy Bug Detector

The clearest difference is ads: Know Your Contacts at none against Hidden Camera Spy Bug Detector's shown. Know Your Contacts also leads on update cadence (fortnightly vs every 8 months) and iOS requirement (12.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Know Your Contacts sells 2 in-app purchases, starting at $0.99 per month and Hidden Camera Spy Bug Detector sells 4 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Know Your Contacts ships an update fortnightly, Hidden Camera Spy Bug Detector every 8 months. The most recent releases landed on September 27, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Know Your Contacts | Hidden Camera Spy Bug Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (165 ratings)](https://appshunter.io/ios/app/hidden-camera-spy-bug-detector/id6737350119/reviews)** |
| Number of ratings | — | **165** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 8 months |
| Monetization | — | Subscription |
| Size | 52 MB | 66 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Krykk Ltd](https://appshunter.io/developer/1794120288) | [Linwood Beem](https://appshunter.io/developer/1850993157) |

## What reviewers say

### Know Your Contacts

[App page](https://appshunter.io/ios/app/know-your-contacts/id6572281032)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $0.99 | per month |
| One time | $9.99 | one-time |


### Hidden Camera Spy Bug Detector

[App page](https://appshunter.io/ios/app/hidden-camera-spy-bug-detector/id6737350119)

Transform your phone into a security scanner to detect hidden cameras and unauthorized WIFI devices. Maintain your privacy in hotel rooms, rental properties, and other private spaces with advanced scanning technology. Take control of your personal security with professional detection tools.

**Highlights:** Detect hidden cameras, Analyze WIFI networks, Identify suspicious devices, Perform room scans, Privacy protection tools

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hidden Camera Spy Bug Detector | $8.99 | per 7 days |
| Hacking Scener | $9.99 | per 7 days |
| Hidden Camera Spy Bug Detector | $83.99 | per year |
| Hidden Camera Spy Bug Detector | $99.99 | per year |


## Frequently asked questions

### Is Know Your Contacts free?

Know Your Contacts is free to download, with in-app purchases available.

### Is Hidden Camera Spy Bug Detector free?

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

### Do Know Your Contacts or Hidden Camera Spy Bug Detector have ads?

Hidden Camera Spy Bug Detector shows ads; Know Your Contacts does not.

### Which is updated more often, Know Your Contacts or Hidden Camera Spy Bug Detector?

Know Your Contacts ships an update fortnightly, and Hidden Camera Spy Bug Detector every 8 months. Most recently, Know Your Contacts was updated on September 27, 2026 and Hidden Camera Spy Bug Detector on October 13, 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.*