# Decibels vs ServiceTests

The clearest difference is in-app purchases: ServiceTests at none against Decibels's 1. ServiceTests also leads on update cadence (every 6 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Decibels sells 1 one-off in-app purchase. ServiceTests asks for nothing beyond the download.

Decibels ships an update every 5 months, ServiceTests every 6 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Decibels | ServiceTests |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Size | 6 MB | 12 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Merano Studio Limited](https://appshunter.io/developer/1783493234) | [Thanh Nguyen](https://appshunter.io/developer/6777103907) |

## What reviewers say

### Decibels

[App page](https://appshunter.io/ios/app/decibels/id6749821741)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Leave a Tip | $0.99 | 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 Decibels free?

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

### Is ServiceTests free?

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

### Do Decibels or ServiceTests have ads?

Neither Decibels nor ServiceTests shows ads.

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

Decibels ships an update every 5 months, and ServiceTests every 6 weeks. Most recently, Decibels was updated on November 8, 2026 and ServiceTests on November 5, 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.*