# Random Sound Recorder vs AcousticLab

The clearest difference is in-app purchases: Random Sound Recorder at none against AcousticLab's 1. Random Sound Recorder also leads on iOS requirement (11.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AcousticLab sells 1 in-app purchase, starting at $9.99 per month. Random Sound Recorder asks for nothing beyond the download.

Random Sound Recorder ships an update every 9 months, AcousticLab every 7 months. The most recent releases landed on October 26, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Random Sound Recorder | AcousticLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/acousticlab/id1382478687/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 7 months** |
| Monetization | — | Free with in-app purchases |
| Size | 0 MB | 7 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ralph Cos](https://appshunter.io/developer/573505028) | [ZKXY Technology Co., Ltd](https://appshunter.io/developer/1382478384) |

## What reviewers say

### Random Sound Recorder

[App page](https://appshunter.io/ios/app/random-sound-recorder/id608045136)

**Features:** macOS Compatibility

**In-app purchases:** none


### AcousticLab

[App page](https://appshunter.io/ios/app/acousticlab/id1382478687)

Transform your iOS device into a professional noise measurement tool. Capture precise sound with stereo recording, calibration, and advanced analysis features. Ideal for accurate audio data collection and evaluation.

**Highlights:** Professional stereo recording, Precise sound acquisition and analysis, Input channel calibration, Automatic recording triggers, Prerecord function, Signal marking and playback

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Analysis Set, 1 Month | $9.99 | per month |


## Frequently asked questions

### Is Random Sound Recorder free?

Random Sound Recorder is free to download, with no in-app purchases.

### Is AcousticLab free?

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

### Do Random Sound Recorder or AcousticLab have ads?

Neither Random Sound Recorder nor AcousticLab shows ads.

### Which is updated more often, Random Sound Recorder or AcousticLab?

Random Sound Recorder ships an update every 9 months, and AcousticLab every 7 months. Most recently, Random Sound Recorder was updated on October 26, 2026 and AcousticLab on October 10, 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.*