# Physics Toolbox Sensor Suite vs EMF & Magnetic Detector

The clearest difference is ads: Physics Toolbox Sensor Suite at none against EMF & Magnetic Detector's shown. Physics Toolbox Sensor Suite also leads on update cadence (weekly vs every 2 months) and ratings volume (1.8K vs 439). EMF & Magnetic Detector's advantage is review sentiment (90% vs 80%) and device support (4 vs 2). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Physics Toolbox Sensor Suite sells 1 one-off in-app purchase and EMF & Magnetic Detector sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Physics Toolbox Sensor Suite against 4.6 for EMF & Magnetic Detector. Both are backed by a comparable volume of ratings — 1.8K and 439 respectively. Written reviews are what separate them: 80% of Physics Toolbox Sensor Suite's written reviews are positive against 90% of EMF & Magnetic Detector's.

Physics Toolbox Sensor Suite ships an update weekly, EMF & Magnetic Detector every 2 months. Both last shipped on September 24, 2026.

## The numbers

| Metric | Physics Toolbox Sensor Suite | EMF & Magnetic Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.8K ratings)](https://appshunter.io/ios/app/physics-toolbox-sensor-suite/id1128914250/reviews)** | [4.6 (439 ratings)](https://appshunter.io/ios/app/emf-and-magnetic-detector/id1403751803/reviews) |
| Number of ratings | **1.8K** | 439 |
| Positive reviews | 80.5% of reviews | **90.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 77 MB | 29 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Vieyra](https://appshunter.io/developer/998187453) | [Jose Bello](https://appshunter.io/developer/1013437387) |

## What reviewers say

### Physics Toolbox Sensor Suite

[App page](https://appshunter.io/ios/app/physics-toolbox-sensor-suite/id1128914250)

This app turns your smartphone into a scientific instrument suite, enabling measurement, recording, analysis, and export of real-time sensor data. It offers tools for kinematics, acoustics, light, magnetism, and more, suitable for students, educators, researchers, and hobbyists.

**Highlights:** Real-time sensor data measurement, Data recording and analysis, Data export functionality, Kinematics tools (accelerometer, gyroscope), Acoustics tools (sound meter, oscilloscope), Magnetism tools (compass, magnetometer), AR visualization for magnetic fields and measurements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $5.99 | one-time |


### EMF & Magnetic Detector

[App page](https://appshunter.io/ios/app/emf-and-magnetic-detector/id1403751803)

This app uses your device's magnetometer to detect magnetic and electromagnetic fields. It helps locate metal objects, hidden wires, pipes, and even wood studs behind walls. Get real-time readings and alerts to explore your surroundings.

**Highlights:** Detects magnetic and EMF fields, Locates metal objects, wires, and pipes, Finds hidden wood studs behind walls, Real-time magnetic field intensity readings (μT & mG), Active detection beep alerts, Automatic storage of time and measurements

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Full Access | $4.99 | per 7 days |
| Remove Ads - Magnetic Detector | $2.99 | one-time |
| Unlock all - Premium & Warning Beep | $4.99 | one-time |
| Lifetime Full Access | $12.99 | one-time |

**What reviewers like**

- ⭐ Accurate magnetic detection
- 👍 Easy to use and intuitive
- 🔍 Helpful for finding hidden metal objects
- 🔧 Useful for troubleshooting mechanical issues (e.g., magnetized watches)

**What reviewers complain about**

- 💰 Ads can be intrusive in free version
- 🔒 Concerns about privacy and data collection
- 🔋 Potential impact on device battery life

**Reported bugs**

- Readings sometimes inconsistent or stop at certain thresholds
- Compatibility issues with some devices

**Requested features**

- Add support for measuring electric fields
- Improve accuracy and sensitivity
- Provide more detailed readings and analysis


## Frequently asked questions

### Is Physics Toolbox Sensor Suite free?

Physics Toolbox Sensor Suite is free to download, with in-app purchases available.

### Is EMF & Magnetic Detector free?

EMF & Magnetic Detector is free to download, with in-app purchases available.

### Which has better reviews, Physics Toolbox Sensor Suite or EMF & Magnetic Detector?

Physics Toolbox Sensor Suite is rated higher. Physics Toolbox Sensor Suite averages 4.7 out of 5 from 1.8K ratings, while EMF & Magnetic Detector averages 4.6 from 439 ratings.

### Do Physics Toolbox Sensor Suite or EMF & Magnetic Detector have ads?

EMF & Magnetic Detector shows ads; Physics Toolbox Sensor Suite does not.

### Which is updated more often, Physics Toolbox Sensor Suite or EMF & Magnetic Detector?

Physics Toolbox Sensor Suite ships an update weekly, and EMF & Magnetic Detector every 2 months. Most recently, Physics Toolbox Sensor Suite was updated on September 24, 2026 and EMF & Magnetic Detector on September 24, 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.*