# Hydraulic Training Calculators vs Camera Detector App

The clearest difference is rating: Hydraulic Training Calculators at 5.0 against Camera Detector App's 4.4. Hydraulic Training Calculators also leads on monetization model (free with in-app purchases vs subscription) and iOS requirement (13.2 vs 15.0). Camera Detector App's advantage is ratings volume (10K vs 1) and update cadence (every 6 weeks vs every 4 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Hydraulic Training Calculators sells 2 in-app purchases, starting at $9.49 per year and Camera Detector App sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Hydraulic Training Calculators holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Camera Detector App has 10K ratings behind it against 1, so its average is the more settled of the two.

Hydraulic Training Calculators ships an update every 4 months, Camera Detector App every 6 weeks. The most recent releases landed on October 29, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Hydraulic Training Calculators | Camera Detector App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydraulic-training-calculators/id1273715287/reviews)** | [4.4 (10K ratings)](https://appshunter.io/ios/app/camera-detector-app/id6449518978/reviews) |
| Number of ratings | 1 | **10K** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 16 MB | 217 MB |
| Requires iOS | **13.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gary Molton](https://appshunter.io/developer/1193080103) | [HMA Mobile LLC](https://appshunter.io/developer/1646376297) |

## What reviewers say

### Hydraulic Training Calculators

[App page](https://appshunter.io/ios/app/hydraulic-training-calculators/id1273715287)

This app offers a comprehensive suite of hydraulic and fluid power tools, including calculators for power, thermal balance, and pipework. It provides design guides, a symbol library, and unit converters. Users can access free interactive content and a trial of paid resources, with options for one-time unlocks or annual subscriptions for extensive training materials.

**Highlights:** Hydraulic calculators, Symbol library, Unit converter, Design guides, Troubleshooting fault finder, Training courses, Simulation experiments

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Training Subscription | $9.49 | per year |
| Hydraulic Quiz Design Guides | $4.99 | one-time |


### Camera Detector App

[App page](https://appshunter.io/ios/app/camera-detector-app/id6449518978)

Scan your surroundings and Wi-Fi networks for unusual devices that may compromise your privacy. Detect hidden cameras, GPS trackers, and other potential threats using AI lens detection and network scanning. Stay safe and secure in hotels, at home, or in any sensitive location.

**Highlights:** AI Camera & Lens Detection, Wi-Fi Scanner, Bluetooth Scanner, GPS Tracker Detection, Scan History

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features weekly | $6.99 | per 7 days |
| All Advanced Features Annually | $34.99 | per year |
| Annual Plan | $34.99 | per year |
| Acquire all features endlessly | $49.99 | one-time |

**What reviewers like**

- ⭐ Useful for detecting hidden cameras
- ⭐ Helped resolve privacy issues

**What reviewers complain about**

- 🚫 Fails to detect known cameras
- 💰 Expensive subscription required
- 🤖 Inaccurate detection of non-camera objects
- 🤔 Confusing and lacking instructions

**Reported bugs**

- App crashes when trying to fix detected issues
- Inability to view app information without subscription

**Requested features**

- Improve camera detection accuracy
- Provide clear instructions and tutorials
- Offer a more affordable pricing model


## Frequently asked questions

### Is Hydraulic Training Calculators free?

Hydraulic Training Calculators is free to download, with in-app purchases available.

### Is Camera Detector App free?

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

### Which has better reviews, Hydraulic Training Calculators or Camera Detector App?

Hydraulic Training Calculators is rated higher. Hydraulic Training Calculators averages 5.0 out of 5 from 1 ratings, while Camera Detector App averages 4.4 from 10K ratings.

### Do Hydraulic Training Calculators or Camera Detector App have ads?

Neither Hydraulic Training Calculators nor Camera Detector App shows ads.

### Which is updated more often, Hydraulic Training Calculators or Camera Detector App?

Hydraulic Training Calculators ships an update every 4 months, and Camera Detector App every 6 weeks. Most recently, Hydraulic Training Calculators was updated on October 29, 2026 and Camera Detector App on November 1, 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.*