# Detector vs EMF Analytics

The clearest difference is rating: Detector at 4.6 against EMF Analytics's 4.0. Detector also leads on review sentiment (87% vs 66%) and ratings volume (531 vs 69). EMF Analytics's advantage is ads (none vs shown) and update cadence (every 2 days vs every 10 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Detector holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Detector has 531 ratings behind it against 69, so its average is the more settled of the two. Written reviews point the same way: 87% of Detector's written reviews are positive against 66% of EMF Analytics's.

Detector ships an update every 10 days, EMF Analytics every 2 days. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Detector | EMF Analytics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (531 ratings)](https://appshunter.io/ios/app/detectorfind-lostspy-device/id465214552/reviews)** | [4.0 (69 ratings)](https://appshunter.io/ios/app/emf-analytics/id1625551565/reviews) |
| Number of ratings | **531** | 69 |
| Positive reviews | **87.4% of reviews** | 65.8% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | Ad-supported | **Free** |
| Size | 40 MB | 28 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [长金 胡](https://appshunter.io/developer/1528253434) | [SpiritShack Ltd](https://appshunter.io/developer/1562729686) |

## What reviewers say

### Detector

[App page](https://appshunter.io/ios/app/detectorfind-lostspy-device/id465214552)

Detect hidden spy devices like cameras and microphones using advanced technology. This app helps you safeguard your privacy by scanning for Bluetooth, magnetic fields, infrared, and Wi-Fi signals. Restore peace of mind by unmasking intrusive gadgets in your surroundings.

**Highlights:** Multi-faceted detection (Bluetooth, magnetic, infrared, Wi-Fi), User-friendly interface, Real-time alerts, Customizable settings, Portable and convenient

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Works as advertised
- 👍 Easy to use
- 🔍 Variety of detection methods
- 💡 Helpful for finding lost devices
- 🔒 Useful for security purposes

**What reviewers complain about**

- 🔋 High ad frequency
- 📍 Inaccurate distance measurements
- 🐛 Compatibility issues with some devices

**Reported bugs**

- Inability to detect some known devices
- Freezing or crashing issues

**Requested features**

- Option to remove ads for a fee
- Improved accuracy for distance and location tracking
- More detailed information on detected devices


### EMF Analytics

[App page](https://appshunter.io/ios/app/emf-analytics/id1625551565)

Detect electromagnetic fields (EMF) with your device's sensor. View live and historical readings, switch measurement units, and utilize visual and auditory alerts. Includes a flashlight for investigations.

**Highlights:** Live EMF reading display, Timelapse graph of previous readings, Toggle between uT and mG units, Minimum and maximum reading display, Flashlight control, Colored LED strength indicator, Sound and vibration alerts

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

**In-app purchases:** none


## Frequently asked questions

### Is Detector free?

Detector is free to download, with no in-app purchases.

### Is EMF Analytics free?

EMF Analytics is free to download, with no in-app purchases.

### Which has better reviews, Detector or EMF Analytics?

Detector is rated higher. Detector averages 4.6 out of 5 from 531 ratings, while EMF Analytics averages 4.0 from 69 ratings.

### Do Detector or EMF Analytics have ads?

Detector shows ads; EMF Analytics does not.

### Which is updated more often, Detector or EMF Analytics?

Detector ships an update every 10 days, and EMF Analytics every 2 days. Most recently, Detector was updated on October 12, 2026 and EMF Analytics on October 3, 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.*