# AcoustaLab vs ServiceTests

The clearest difference is in-app purchases: ServiceTests at none against AcoustaLab's 3. AcoustaLab's advantage is update cadence (every 9 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AcoustaLab sells 3 in-app purchases, starting at $1.99 per month. ServiceTests asks for nothing beyond the download.

AcoustaLab ships an update every 9 days, ServiceTests every 6 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AcoustaLab | ServiceTests |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Size | 5 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [QINGDAO XUFAN ZHILIAN INFORMATION TECHNOLOGY CO. LTD.](https://appshunter.io/developer/1888657658) | [Thanh Nguyen](https://appshunter.io/developer/6777103907) |

## What reviewers say

### AcoustaLab

[App page](https://appshunter.io/ios/app/acoustalab-tone-generator/id6763583795)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Yearly Pro | $9.99 | per year |
| Lifetime Unlock | $19.99 | one-time |


### ServiceTests

[App page](https://appshunter.io/ios/app/servicetests/id6790297735)

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

**In-app purchases:** none


## Frequently asked questions

### Is AcoustaLab free?

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

### Is ServiceTests free?

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

### Do AcoustaLab or ServiceTests have ads?

Neither AcoustaLab nor ServiceTests shows ads.

### Which is updated more often, AcoustaLab or ServiceTests?

AcoustaLab ships an update every 9 days, and ServiceTests every 6 weeks. Most recently, AcoustaLab was updated on October 28, 2026 and ServiceTests on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*