# Noise Calc vs Sorama App

The clearest difference is update cadence: Sorama App at every 4 months against Noise Calc's every 11 months. On price, ads, 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.

Noise Calc ships an update every 11 months, Sorama App every 4 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Noise Calc | Sorama App |
| --- | --- | --- |
| Price | Free | Free |
| 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 | **Every 4 months** |
| Monetization | Free | — |
| Size | 39 MB | 53 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lorenzo Rizzi](https://appshunter.io/developer/856070642) | [Sorama B.V.](https://appshunter.io/developer/1657667825) |

## 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


### Sorama App

[App page](https://appshunter.io/ios/app/sorama-app/id6470909694)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Noise Calc free?

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

### Is Sorama App free?

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

### Do Noise Calc or Sorama App have ads?

Neither Noise Calc nor Sorama App shows ads.

### Which is updated more often, Noise Calc or Sorama App?

Noise Calc ships an update every 11 months, and Sorama App every 4 months. Most recently, Noise Calc was updated on September 24, 2026 and Sorama App on September 8, 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.*