# unitCalc vs Noise Meter

unitCalc and Noise Meter are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | unitCalc | Noise Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 1 MB | 31 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [培祐 黃](https://appshunter.io/developer/1053411333) | [pilyeong heo](https://appshunter.io/developer/1835315150) |

## What reviewers say

### unitCalc

[App page](https://appshunter.io/ios/app/unitcalc/id6445979881)

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

**In-app purchases:** none


### Noise Meter

[App page](https://appshunter.io/ios/app/noise-meter-db-sound-level/id6765851237)

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

**In-app purchases:** none


## Frequently asked questions

### Is unitCalc free?

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

### Is Noise Meter free?

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

### Do unitCalc or Noise Meter have ads?

Neither unitCalc nor Noise Meter shows ads.

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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.*