# MS Vision vs Decibel Meter ; Sound Level

The clearest difference is in-app purchases: MS Vision at none against Decibel Meter ; Sound Level's 2. MS Vision also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Decibel Meter ; Sound Level sells 2 in-app purchases, starting at $5.99 per 7 days. MS Vision asks for nothing beyond the download.

MS Vision ships an update every 6 weeks, Decibel Meter ; Sound Level every 5 weeks. The most recent releases landed on October 30, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | MS Vision | Decibel Meter ; Sound Level |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Size | 82 MB | 18 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chongqing Streamax Information Technology Co., Ltd.](https://appshunter.io/developer/502446406) | [Evrim AYAZ](https://appshunter.io/developer/1780294826) |

## What reviewers say

### MS Vision

[App page](https://appshunter.io/ios/app/ms-vision/id6736853451)

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

**In-app purchases:** none


### Decibel Meter ; Sound Level

[App page](https://appshunter.io/ios/app/decibel-meter-sound-level/id6742335438)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trial Weekly VIP | $5.99 | per 7 days |
| Trial VIP | $29.99 | per year |


## Frequently asked questions

### Is MS Vision free?

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

### Is Decibel Meter ; Sound Level free?

Decibel Meter ; Sound Level is free to download, with in-app purchases available.

### Do MS Vision or Decibel Meter ; Sound Level have ads?

Neither MS Vision nor Decibel Meter ; Sound Level shows ads.

### Which is updated more often, MS Vision or Decibel Meter ; Sound Level?

MS Vision ships an update every 6 weeks, and Decibel Meter ; Sound Level every 5 weeks. Most recently, MS Vision was updated on October 30, 2026 and Decibel Meter ; Sound Level on October 13, 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.*