# SmarterNoise vs Fast Unit Convert

The clearest difference is price: SmarterNoise at Free against Fast Unit Convert's $0.59. Fast Unit Convert's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

SmarterNoise is free to download; Fast Unit Convert costs $0.59 up front. SmarterNoise sells 2 one-off in-app purchases. Fast Unit Convert asks for nothing beyond the download.

## The numbers

| Metric | SmarterNoise | Fast Unit Convert |
| --- | --- | --- |
| Price | **Free** | $0.59 |
| Rating | **[4.6 (115 ratings)](https://appshunter.io/ios/app/smarternoise/id1384299042/reviews)** | — |
| Number of ratings | **115** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 16 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Johan Rogard](https://appshunter.io/developer/1384299041) | [Rodolfo Goulart](https://appshunter.io/developer/1836472003) |

## What reviewers say

### SmarterNoise

[App page](https://appshunter.io/ios/app/smarternoise/id1384299042)

This app measures sound levels, records audio and video, and provides information on noise exposure risks. It features smart icons to help users understand the impact of noise on health and cognitive performance. Save, share, and archive your recordings with this comprehensive tool.

**Highlights:** Sound level measurement, Video and audio recording, Noise exposure risk information, Smart icons for health impact, Archive and sharing of recordings, Calibration, Location and time display

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Long-term measurement | $1.99 | one-time |
| Remove ads | $2.99 | one-time |


### Fast Unit Convert

[App page](https://appshunter.io/ios/app/fast-unit-convert/id6752038322)

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

**In-app purchases:** none


## Frequently asked questions

### Is SmarterNoise free?

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

### Is Fast Unit Convert free?

Fast Unit Convert costs $0.59, with no in-app purchases.

### Do SmarterNoise or Fast Unit Convert have ads?

SmarterNoise shows ads; Fast Unit Convert 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.*