# Physics Toolbox Magnetometer vs 务实

The clearest difference is update cadence: 务实 at monthly against Physics Toolbox Magnetometer's every 13 months. 务实 also leads on iOS requirement (9.0 vs 17.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Physics Toolbox Magnetometer sells 1 one-off in-app purchase and 务实 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Physics Toolbox Magnetometer ships an update every 13 months, 务实 monthly. The most recent releases landed on September 23, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Physics Toolbox Magnetometer | 务实 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/physics-toolbox-magnetometer/id1003749103/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | Free | — |
| Size | 17 MB | 32 MB |
| Requires iOS | 17.1 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Vieyra](https://appshunter.io/developer/998187453) | [程欣 朱](https://appshunter.io/developer/1808327732) |

## What reviewers say

### Physics Toolbox Magnetometer

[App page](https://appshunter.io/ios/app/physics-toolbox-magnetometer/id1003749103)

This app transforms your iPhone into a precise scientific instrument for measuring, visualizing, and recording magnetic fields. Explore magnetic field vectors, magnitudes, and compass headings with real-time charts and digital readouts. Ideal for educational experiments, lab work, or curious exploration.

**Highlights:** Real-time magnetic field vector and magnitude display, Chart, digital, and compass viewing modes, Data recording and CSV export, Adjustable sample rate (1-100 Hz), Signal filters for noise reduction, Detection of permanent and electromagnetic fields

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $2.99 | one-time |


### 务实

[App page](https://appshunter.io/ios/app/id1474765920)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12务实币 | $1.99 | one-time |
| 25务实币 | $3.99 | one-time |
| 40务实币 | $5.99 | one-time |
| 50务实币 | $7.99 | one-time |


## Frequently asked questions

### Is Physics Toolbox Magnetometer free?

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

### Is 务实 free?

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

### Do Physics Toolbox Magnetometer or 务实 have ads?

Neither Physics Toolbox Magnetometer nor 务实 shows ads.

### Which is updated more often, Physics Toolbox Magnetometer or 务实?

Physics Toolbox Magnetometer ships an update every 13 months, and 务实 monthly. Most recently, Physics Toolbox Magnetometer was updated on September 23, 2026 and 务实 on September 15, 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.*