# Metal Detector 3D Plus vs Physics Labs

The clearest difference is price: Physics Labs at Free against Metal Detector 3D Plus's $2.99. Physics Labs also leads on update cadence (every 2 weeks vs every 38 months). Metal Detector 3D Plus's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.6). On in-app purchases and device support there is nothing between them.

Physics Labs is free to download; Metal Detector 3D Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Metal Detector 3D Plus ships an update every 38 months, Physics Labs every 2 weeks. The most recent releases landed on October 27, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Metal Detector 3D Plus | Physics Labs |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 2 weeks** |
| Monetization | — | Ad-supported |
| Size | 2 MB | 32 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Huseyin Aykut Uludag](https://appshunter.io/developer/1469165629) |

## What reviewers say

### Metal Detector 3D Plus

[App page](https://appshunter.io/ios/app/metal-detector-3d-plus/id1619596809)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Labs

[App page](https://appshunter.io/ios/app/physics-labs/id6472849584)

This app uses your device's sensors to measure various physical quantities like acceleration, magnetic fields, and sound levels. View data in coordinates or scalar magnitude, and export it to Excel for analysis. It's a digital lab for your phone.

**Highlights:** Measure acceleration, magnetic fields, and sound levels, View data in X, Y, Z coordinates or scalar magnitude, Export sensor data to Excel for analysis, Eliminate gravity from acceleration measurements, Measure atmospheric pressure

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Metal Detector 3D Plus free?

Metal Detector 3D Plus costs $2.99, with no in-app purchases.

### Is Physics Labs free?

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

### Do Metal Detector 3D Plus or Physics Labs have ads?

Physics Labs shows ads; Metal Detector 3D Plus does not.

### Which is updated more often, Metal Detector 3D Plus or Physics Labs?

Metal Detector 3D Plus ships an update every 38 months, and Physics Labs every 2 weeks. Most recently, Metal Detector 3D Plus was updated on October 27, 2026 and Physics Labs on October 16, 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.*