# Aptus vs Decibel Meter+ Sound Level dB

The clearest difference is update cadence: Decibel Meter+ Sound Level dB at weekly against Aptus's every 19 months. Aptus's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.4). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Aptus ships an update every 19 months, Decibel Meter+ Sound Level dB weekly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Aptus | Decibel Meter+ Sound Level dB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/decibel-meter-plus-sound-level-db/id1593197145/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | Every 19 months | **Weekly** |
| Monetization | — | Ad-supported |
| Size | 45 MB | 86 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Metricell Limited](https://appshunter.io/developer/432315833) | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) |

## What reviewers say

### Aptus

[App page](https://appshunter.io/ios/app/aptus/id1364511396)

**In-app purchases:** none


### Decibel Meter+ Sound Level dB

[App page](https://appshunter.io/ios/app/decibel-meter-plus-sound-level-db/id1593197145)

This app measures sound levels in decibels using your iPhone's microphone. It offers OSHA/NIOSH noise dose tracking, A/C/Z weighting, and calibration for accurate readings. Monitor workplace, neighborhood, or event noise with a clear, color-coded display.

**Highlights:** Real-time decibel measurement (0–120 dB SPL), OSHA + NIOSH 8-hour noise dose tracking, A / C / Z weighting toggle, One-tap quiet room calibration, Color-coded radial gauge, Live waveform chart, Min, Average, and Max dB tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Aptus free?

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

### Is Decibel Meter+ Sound Level dB free?

Decibel Meter+ Sound Level dB is free to download, with no in-app purchases.

### Which is updated more often, Aptus or Decibel Meter+ Sound Level dB?

Aptus ships an update every 19 months, and Decibel Meter+ Sound Level dB weekly. Most recently, Aptus was updated on November 2, 2026 and Decibel Meter+ Sound Level dB on November 7, 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.*