# Radiator Calculator Pro vs Hidden Camera Detector

The clearest difference is review sentiment: Hidden Camera Detector at 100% against Radiator Calculator Pro's 0%. Hidden Camera Detector also leads on monetization model (free vs paid) and update cadence (every 2 days vs every 3 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Radiator Calculator Pro sells 1 one-off in-app purchase and Hidden Camera Detector sells 9 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Radiator Calculator Pro ships an update every 3 months, Hidden Camera Detector every 2 days. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Radiator Calculator Pro | Hidden Camera Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/hidden-camera-detector-scan/id6756610396/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 16 MB | 66 MB |
| Requires iOS | 26.0 | **18.1** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DigitalKind Ltd](https://appshunter.io/developer/1557937157) | [Artur Karachev](https://appshunter.io/developer/1678382844) |

## What reviewers say

### Radiator Calculator Pro

[App page](https://appshunter.io/ios/app/radiator-calculator-pro/id6743349772)

Accurately calculate the heating requirements for any room in your home. This tool supports unlimited rooms, offers precise calculations in Watts and BTU, and features a clean, intuitive design with dark mode support.

**Highlights:** Calculate heating requirements, Support for all room types, Precise Watts and BTU output, Unlimited room saving, Intuitive user interface, Dark mode support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Radiator Calculator PRO | $3.99 | one-time |


### 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 |


## Frequently asked questions

### Is Radiator Calculator Pro free?

Radiator Calculator Pro is free to download, with in-app purchases available.

### Is Hidden Camera Detector free?

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

### Do Radiator Calculator Pro or Hidden Camera Detector have ads?

Neither Radiator Calculator Pro nor Hidden Camera Detector shows ads.

### Which is updated more often, Radiator Calculator Pro or Hidden Camera Detector?

Radiator Calculator Pro ships an update every 3 months, and Hidden Camera Detector every 2 days. Most recently, Radiator Calculator Pro was updated on October 28, 2026 and Hidden Camera Detector 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.*