# Decibel Meter dB (Sound Meter) vs ClockKeepers

The clearest difference is ads: ClockKeepers at none against Decibel Meter dB (Sound Meter)'s shown. ClockKeepers also leads on update cadence (every 3 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Decibel Meter dB (Sound Meter) sells 23 in-app purchases, starting at $0.99 per 7 days and ClockKeepers sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Decibel Meter dB (Sound Meter) ships an update every 2 months, ClockKeepers every 3 days. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Decibel Meter dB (Sound Meter) | ClockKeepers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.3K ratings)](https://appshunter.io/ios/app/decibel-meter-db-sound-meter/id1205186197/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 134 MB | 8 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [Joseph Ting](https://appshunter.io/developer/6775193825) |

## What reviewers say

### Decibel Meter dB (Sound Meter)

[App page](https://appshunter.io/ios/app/decibel-meter-db-sound-meter/id1205186197)

Measure sound volume in real-time with this app. It provides precise decibel readings, a visual timeline of sound fluctuations, and customizable calibration for accurate results. Ideal for monitoring noise levels in various environments.

**Highlights:** Accurate sound measurements in decibels (dB), Real-time volume display, Volume timeline for trend analysis, Customizable calibration settings, User-friendly interface

**Features:** Family Sharing, Vision Pro support

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $0.99 | per 7 days |
| Unlimited access | $1.99 | per 7 days |
| Unlimited access | $2.99 | per 7 days |
| Weekly Access | $3.99 | per 7 days |
| Unlimited access | $3.99 | per 7 days |
| Weekly Access | $4.99 | per 7 days |
| Premium features | $4.99 | per 7 days |
| Premium features | $5.99 | per 7 days |
| Premium features | $6.99 | per 7 days |
| Premium features | $7.99 | per 7 days |
| Premium features | $8.99 | per 7 days |
| Premium features | $9.99 | per year |
| Yearly Access | $19.99 | per year |
| Unlimited access | $19.99 | per year |
| Premium features | $19.99 | per month |
| Unlimited access | $29.99 | per year |
| Premium features | $29.99 | per month |
| Unlimited access | $39.99 | per year |
| Yearly Access | $49.99 | per year |
| Unlimited access | $49.99 | per year |
| Custom Calibration | $1.99 | one-time |
| Full Screen Mode | $1.99 | one-time |
| Frequency Weightings | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🤩 Accurate measurements
- 💯 Useful for various applications

**What reviewers complain about**

- 🤑 Expensive subscription
- 🔒 Difficult to refund
- 🐛 Inaccurate readings
- 💤 Doesn't work in airplane mode

**Reported bugs**

- Crashes and freezes
- Sensitivity issues
- Inconsistent performance

**Requested features**

- Ability to save and export recordings
- Customizable settings and calibration
- Support for older devices


### ClockKeepers

[App page](https://appshunter.io/ios/app/clockkeepers-interval-timer/id6808734658)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClockKeepers Pro | $7.99 | one-time |


## Frequently asked questions

### Is Decibel Meter dB (Sound Meter) free?

Decibel Meter dB (Sound Meter) is free to download, with in-app purchases available.

### Is ClockKeepers free?

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

### Do Decibel Meter dB (Sound Meter) or ClockKeepers have ads?

Decibel Meter dB (Sound Meter) shows ads; ClockKeepers does not.

### Which is updated more often, Decibel Meter dB (Sound Meter) or ClockKeepers?

Decibel Meter dB (Sound Meter) ships an update every 2 months, and ClockKeepers every 3 days. Most recently, Decibel Meter dB (Sound Meter) was updated on October 17, 2026 and ClockKeepers on October 8, 2026.

---

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