# Noise Calc vs CallCentersBlock

The clearest difference is price: Noise Calc at Free against CallCentersBlock's $0.99. Noise Calc also leads on device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Noise Calc is free to download; CallCentersBlock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Noise Calc | CallCentersBlock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/noise-calc/id1556882174/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Monetization | Free | — |
| Size | 39 MB | 1 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lorenzo Rizzi](https://appshunter.io/developer/856070642) | [VINCENZO RENZO](https://appshunter.io/developer/1822070489) |

## What reviewers say

### Noise Calc

[App page](https://appshunter.io/ios/app/noise-calc/id1556882174)

This calculator estimates outdoor and semi-reverberant noise levels. It's designed for acoustic technicians and professionals dealing with machine noise, offering tools for logarithmic summation and difference, sound pressure attenuation, and noise reduction from barriers.

**Highlights:** Logarithmic summation of decibels, Logarithmic difference in decibels, Sound pressure attenuation with distance, Free-field sound propagation, Sound-insulating barrier noise reduction, Outdoor machinery noise compliance estimation

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

**In-app purchases:** none


### CallCentersBlock

[App page](https://appshunter.io/ios/app/callcentersblock/id6813885330)

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

**In-app purchases:** none


## Frequently asked questions

### Is Noise Calc free?

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

### Is CallCentersBlock free?

CallCentersBlock costs $0.99, with no in-app purchases.

### Do Noise Calc or CallCentersBlock have ads?

Neither Noise Calc nor CallCentersBlock 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.*