# Decibel Meter vs CPU Rank

Decibel Meter and CPU Rank are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Decibel Meter costs $0.99 and CPU Rank $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Decibel Meter | CPU Rank |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Paid | — |
| Size | 41 MB | 18 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [恒盛 程](https://appshunter.io/developer/1533201832) | [立娜 王](https://appshunter.io/developer/1761096632) |

## What reviewers say

### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-sound-test/id6764498347)

Measure ambient sound levels in real-time using your device's microphone. Understand your environment's noise status, save measurement sessions, and generate PDF reports with data and scene photos. Useful for everyday reference and record-keeping.

**Highlights:** Real-time decibel readings, Spectrum analysis, Environment status labels, Session statistics, Measurement history, Audio playback, Scene photo records, PDF reports

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

**In-app purchases:** none


### CPU Rank

[App page](https://appshunter.io/ios/app/cpu-rank-processor-benchmark/id6772950476)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter free?

Decibel Meter costs $0.99, with no in-app purchases.

### Is CPU Rank free?

CPU Rank costs $0.99, with no in-app purchases.

### Do Decibel Meter or CPU Rank have ads?

Neither Decibel Meter nor CPU Rank shows ads.

---

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