# RF IMD Test vs SoundMess Lab

The clearest difference is in-app purchases: RF IMD Test at none against SoundMess Lab's 1. RF IMD Test also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SoundMess Lab sells 1 one-off in-app purchase. RF IMD Test asks for nothing beyond the download.

## The numbers

| Metric | RF IMD Test | SoundMess Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 5 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JS Audio LLC](https://appshunter.io/developer/1890289921) | [Chih Han Lin](https://appshunter.io/developer/1800248325) |

## What reviewers say

### RF IMD Test

[App page](https://appshunter.io/ios/app/rf-imd-test/id6761567404)

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

**In-app purchases:** none


### SoundMess Lab

[App page](https://appshunter.io/ios/app/soundmess-lab-spl-meter/id6762592034)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoundMess Lab Pro (Lifetime) | $5.99 | one-time |


## Frequently asked questions

### Is RF IMD Test free?

RF IMD Test is free to download, with no in-app purchases.

### Is SoundMess Lab free?

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

### Do RF IMD Test or SoundMess Lab have ads?

Neither RF IMD Test nor SoundMess Lab shows ads.

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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.*