# Physics Labs vs EyeSound Vocal

The clearest difference is ads: EyeSound Vocal at none against Physics Labs's shown. Physics Labs's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Physics Labs ships an update every 2 weeks, EyeSound Vocal every 3 weeks. Both last shipped on November 4, 2026.

## The numbers

| Metric | Physics Labs | EyeSound Vocal |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 32 MB | 3 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Huseyin Aykut Uludag](https://appshunter.io/developer/1469165629) | [keith house](https://appshunter.io/developer/1728464247) |

## What reviewers say

### 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


### EyeSound Vocal

[App page](https://appshunter.io/ios/app/eyesound-vocal/id6476980675)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Physics Labs free?

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

### Is EyeSound Vocal free?

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

### Do Physics Labs or EyeSound Vocal have ads?

Physics Labs shows ads; EyeSound Vocal does not.

### Which is updated more often, Physics Labs or EyeSound Vocal?

Physics Labs ships an update every 2 weeks, and EyeSound Vocal every 3 weeks. Most recently, Physics Labs was updated on November 4, 2026 and EyeSound Vocal on November 4, 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.*