# Decibel Check vs PhonePass Diagnostic

The clearest difference is rating: PhonePass Diagnostic at 5.0 against Decibel Check's 1.5. PhonePass Diagnostic also leads on in-app purchases (none vs 2) and update cadence (weekly vs every 3 weeks). Decibel Check's advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Decibel Check sells 2 in-app purchases, starting at $1.99 per month. PhonePass Diagnostic asks for nothing beyond the download.

PhonePass Diagnostic holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Decibel Check ships an update every 3 weeks, PhonePass Diagnostic weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Decibel Check | PhonePass Diagnostic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/decibel-check/id6503355419/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/phonepass-diagnostic/id6800974874/reviews)** |
| Number of ratings | **2** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 7 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evo Tec Labs @ Pepperbit Online](https://appshunter.io/developer/1665371293) | [Shady Said](https://appshunter.io/developer/6800974906) |

## What reviewers say

### Decibel Check

[App page](https://appshunter.io/ios/app/decibel-check/id6503355419)

Transform your smartphone into a precise sound level meter. Measure minimum, average, and maximum decibel levels with real-time visualizations and recording capabilities for detailed analysis. Gain insights into your auditory environment.

**Highlights:** Real-time Min, Avg, Max sound level measurement, Sound recording for analysis, Intuitive data visualizations, Clear and user-friendly interface, Precise sound measurements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium MONTHLY | $1.99 | per month |
| Premium YEARLY | $9.99 | per year |


### PhonePass Diagnostic

[App page](https://appshunter.io/ios/app/phonepass-diagnostic/id6800974874)

This app guides technicians through structured hardware diagnostic inspections for phones. It offers a comprehensive suite of automated tests for display, camera, audio, sensors, connectivity, and more, allowing for immediate pass/fail recording and export of results.

**Highlights:** Full-screen and touchscreen checks, Camera and flash testing, Automated speaker and microphone tests, Sensor and connectivity diagnostics, Physical button and vibration checks, eSIM activation and charging tests, Exportable diagnostic results

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Check free?

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

### Is PhonePass Diagnostic free?

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

### Which has better reviews, Decibel Check or PhonePass Diagnostic?

PhonePass Diagnostic is rated higher. Decibel Check averages 1.5 out of 5 from 2 ratings, while PhonePass Diagnostic averages 5.0 from 1 ratings.

### Do Decibel Check or PhonePass Diagnostic have ads?

Neither Decibel Check nor PhonePass Diagnostic shows ads.

### Which is updated more often, Decibel Check or PhonePass Diagnostic?

Decibel Check ships an update every 3 weeks, and PhonePass Diagnostic weekly. Most recently, Decibel Check was updated on October 30, 2026 and PhonePass Diagnostic on October 31, 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.*