# AcousticLab vs ProofLink

The clearest difference is in-app purchases: ProofLink at none against AcousticLab's 1. ProofLink also leads on update cadence (every 5 days vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

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

AcousticLab ships an update every 7 months, ProofLink every 5 days. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | AcousticLab | ProofLink |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 41 MB |
| Requires iOS | 15.6 | **15** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZKXY Technology Co., Ltd](https://appshunter.io/developer/1382478384) | [Mashang Traceability (Shanghai) Technology Co., Ltd.](https://appshunter.io/developer/1825050994) |

## What reviewers say

### 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 |


### ProofLink

[App page](https://appshunter.io/ios/app/prooflink/id6748296486)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AcousticLab free?

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

### Is ProofLink free?

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

### Do AcousticLab or ProofLink have ads?

Neither AcousticLab nor ProofLink shows ads.

### Which is updated more often, AcousticLab or ProofLink?

AcousticLab ships an update every 7 months, and ProofLink every 5 days. Most recently, AcousticLab was updated on September 24, 2026 and ProofLink on September 19, 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.*