# Hidden Camera Detector vs Caffeine Rhythm

The clearest difference is ads: Hidden Camera Detector at none against Caffeine Rhythm's shown. Hidden Camera Detector also leads on update cadence (every 2 days vs every 3 weeks) and monetization model (free vs freemium). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Hidden Camera Detector sells 9 in-app purchases, starting at $6.99 per 7 days and Caffeine Rhythm sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Hidden Camera Detector against 5.0 for Caffeine Rhythm. That said, the two scores are not equally well evidenced: Hidden Camera Detector has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Hidden Camera Detector ships an update every 2 days, Caffeine Rhythm every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Hidden Camera Detector | Caffeine Rhythm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/hidden-camera-detector-scan/id6756610396/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/caffeine-rhythm/id6756790180/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 66 MB | 23 MB |
| Requires iOS | 18.1 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Artur Karachev](https://appshunter.io/developer/1678382844) | [Hatching Point LLC](https://appshunter.io/developer/1860158157) |

## What reviewers say

### Hidden Camera Detector

[App page](https://appshunter.io/ios/app/hidden-camera-detector-scan/id6756610396)

This app guides you through inspecting unfamiliar spaces for hidden cameras using visual lens detection, nearby device scanning, and magnetic field readings. It provides structured checklists and on-device reports to help you make informed judgments about suspicious devices.

**Highlights:** Visual lens detection with multiple filters, Nearby device scanning (Bluetooth & Wi-Fi), Magnetic field scanner, Guided inspection checklists, On-device scan reports, Training and tips for inspection

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 Week) | $6.99 | per 7 days |
| Premium (1 Week) | $6.99 | per 7 days |
| Premium (1 Month) | $7.99 | per month |
| Premium (1 Month) | $7.99 | per month |
| Premium (1 Year) | $8.99 | per year |
| Premium (1 Year) | $34.99 | per year |
| Premium (1 Year) | $34.99 | per year |
| Premium (Lifetime) | $11.99 | one-time |
| Premium (Lifetime) | $44.99 | one-time |


### Caffeine Rhythm

[App page](https://appshunter.io/ios/app/caffeine-rhythm/id6756790180)

Track your caffeine intake and understand its impact on your body. This app calculates your real-time caffeine levels and predicts when you'll be able to sleep, helping you optimize your daily consumption for better rest.

**Highlights:** Real-time caffeine decay tracking, Personalized half-life calculation, Sleep safety countdown, Coffee shop menu integration, Streak tracking and gamification, Apple Watch app with complications, Home Screen and Lock Screen widgets, HealthKit integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium | $9.99 | per year |


## Frequently asked questions

### Is Hidden Camera Detector free?

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

### Is Caffeine Rhythm free?

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

### Which has better reviews, Hidden Camera Detector or Caffeine Rhythm?

Hidden Camera Detector and Caffeine Rhythm are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do Hidden Camera Detector or Caffeine Rhythm have ads?

Caffeine Rhythm shows ads; Hidden Camera Detector does not.

### Which is updated more often, Hidden Camera Detector or Caffeine Rhythm?

Hidden Camera Detector ships an update every 2 days, and Caffeine Rhythm every 3 weeks. Most recently, Hidden Camera Detector was updated on October 30, 2026 and Caffeine Rhythm on October 30, 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.*