# SmarterNoise vs WiWater

The clearest difference is in-app purchases: WiWater at none against SmarterNoise's 2. WiWater also leads on ads (none vs shown). SmarterNoise's advantage is update cadence (every 6 weeks vs every 22 months) and iOS requirement (12.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. SmarterNoise sells 2 one-off in-app purchases. WiWater asks for nothing beyond the download.

SmarterNoise ships an update every 6 weeks, WiWater every 22 months. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SmarterNoise | WiWater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (117 ratings)](https://appshunter.io/ios/app/smarternoise/id1384299042/reviews)** | — |
| Number of ratings | **117** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 22 months |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 33 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Johan Rogard](https://appshunter.io/developer/1384299041) | [WiWater](https://appshunter.io/developer/1525357762) |

## 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 |


### WiWater

[App page](https://appshunter.io/ios/app/wiwater/id1525357760)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmarterNoise free?

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

### Is WiWater free?

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

### Do SmarterNoise or WiWater have ads?

SmarterNoise shows ads; WiWater does not.

### Which is updated more often, SmarterNoise or WiWater?

SmarterNoise ships an update every 6 weeks, and WiWater every 22 months. Most recently, SmarterNoise was updated on October 23, 2026 and WiWater on October 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.*