# HSA vs Decibel meter test

The clearest difference is in-app purchases: HSA at none against Decibel meter test's 1. HSA also leads on iOS requirement (9.0 vs 13.0). Decibel meter test's advantage is update cadence (every 4 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Decibel meter test sells 1 in-app purchase, starting at $6.99 per 7 days. HSA asks for nothing beyond the download.

HSA ships an update every 2 months, Decibel meter test every 4 weeks. The most recent releases landed on October 27, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | HSA | Decibel meter test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/decibel-meter-test/id6742873854/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | — | Freemium |
| Size | 6 MB | 37 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杏生 卢](https://appshunter.io/developer/1094592555) | [玉珍 李](https://appshunter.io/developer/1547803211) |

## What reviewers say

### HSA

[App page](https://appshunter.io/ios/app/hsa-10pro/id6446188767)

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibel meter test

[App page](https://appshunter.io/ios/app/decibel-meter-test/id6742873854)

This tool measures environmental noise levels in real-time, records test history, and helps manage noisy surroundings. It offers precise decibel readings and scene capture for analysis.

**Highlights:** Real-time decibel testing, Surrounding noise detection, Scene capture with noise levels, Automatic test record saving, Historical measurement analysis, Simple and easy to use

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One week membership | $6.99 | per 7 days |


## Frequently asked questions

### Is HSA free?

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

### Is Decibel meter test free?

Decibel meter test is free to download, with in-app purchases available.

### Do HSA or Decibel meter test have ads?

Neither HSA nor Decibel meter test shows ads.

### Which is updated more often, HSA or Decibel meter test?

HSA ships an update every 2 months, and Decibel meter test every 4 weeks. Most recently, HSA was updated on October 27, 2026 and Decibel meter test on September 29, 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.*