# AquaSentra vs Unit Lab

The clearest difference is in-app purchases: AquaSentra at none against Unit Lab's 1. AquaSentra also leads on ads (none vs shown). Unit Lab's advantage is iOS requirement (15.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Unit Lab sells 1 one-off in-app purchase. AquaSentra asks for nothing beyond the download.

## The numbers

| Metric | AquaSentra | Unit Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | — |
| Size | 108 MB | 34 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [UtillAi Systems FZ-LLC](https://appshunter.io/developer/1731169868) | [JONATHAN PETER WARNER](https://appshunter.io/developer/1879324972) |

## What reviewers say

### AquaSentra

[App page](https://appshunter.io/ios/app/aquasentra/id6739526861)

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

**In-app purchases:** none


### Unit Lab

[App page](https://appshunter.io/ios/app/unit-lab-unit-converter/id6793844564)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is AquaSentra free?

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

### Is Unit Lab free?

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

### Do AquaSentra or Unit Lab have ads?

Unit Lab shows ads; AquaSentra does not.

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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.*