# Chronometer vs Decibel Meter

The clearest difference is price: Chronometer at Free against Decibel Meter's $0.99. Chronometer also leads on update cadence (every 3 weeks vs every 3 months). Decibel Meter's advantage is ads (none vs shown) and iOS requirement (15.0 vs 26.2). On rating, ratings volume, in-app purchases and device support there is nothing between them.

Chronometer is free to download; Decibel Meter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Chronometer against 5.0 for Decibel Meter. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Chronometer ships an update every 3 weeks, Decibel Meter every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Chronometer | Decibel Meter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/chronometer-world-clock/id6760746571/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/decibel-meter-sound-test/id6764498347/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | — | Paid |
| Size | 18 MB | 41 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chathushka Rodrigo](https://appshunter.io/developer/1886060202) | [恒盛 程](https://appshunter.io/developer/1533201832) |

## What reviewers say

### Chronometer

[App page](https://appshunter.io/ios/app/chronometer-world-clock/id6760746571)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Chronometer free?

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

### Is Decibel Meter free?

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

### Which has better reviews, Chronometer or Decibel Meter?

Chronometer and Decibel Meter are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Chronometer or Decibel Meter have ads?

Chronometer shows ads; Decibel Meter does not.

### Which is updated more often, Chronometer or Decibel Meter?

Chronometer ships an update every 3 weeks, and Decibel Meter every 3 months. Most recently, Chronometer was updated on October 24, 2026 and Decibel Meter on October 25, 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.*