# MuseumPlus Scan vs Noise Diary

The clearest difference is price: MuseumPlus Scan at Free against Noise Diary's $0.99. MuseumPlus Scan also leads on iOS requirement (9.1 vs 13.0). Noise Diary's advantage is update cadence (weekly vs every 15 months). On ads, in-app purchases and device support there is nothing between them.

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

MuseumPlus Scan ships an update every 15 months, Noise Diary weekly. The most recent releases landed on September 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | MuseumPlus Scan | Noise Diary |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Weekly** |
| Size | 20 MB | 25 MB |
| Requires iOS | **9.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [zetcom Informatikdienstleistungs AG](https://appshunter.io/developer/1774504145) | [Christopher Lamb](https://appshunter.io/developer/1484679049) |

## What reviewers say

### MuseumPlus Scan

[App page](https://appshunter.io/ios/app/museumplus-scan/id6737059842)

**In-app purchases:** none


### Noise Diary

[App page](https://appshunter.io/ios/app/noise-diary/id6747617668)

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

**In-app purchases:** none


## Frequently asked questions

### Is MuseumPlus Scan free?

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

### Is Noise Diary free?

Noise Diary costs $0.99, with no in-app purchases.

### Do MuseumPlus Scan or Noise Diary have ads?

Neither MuseumPlus Scan nor Noise Diary shows ads.

### Which is updated more often, MuseumPlus Scan or Noise Diary?

MuseumPlus Scan ships an update every 15 months, and Noise Diary weekly. Most recently, MuseumPlus Scan was updated on September 13, 2026 and Noise Diary on September 26, 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.*