# DecibelMasterJ — Your Professional Sound Meter

> Your Professional Sound Meter (iPhone/iPad app by 旭 赵.)

- Source: https://appshunter.io/ios/app/decibelmasterj/id6748947657 (this page in markdown: same URL + `.md`)
- Developer: [旭 赵](https://appshunter.io/developer/1826446745)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 2 MB
- Languages: American English
- Released: 2025-07-23
- Data updated: 2026-07-18
- User reviews in markdown: https://appshunter.io/ios/app/decibelmasterj/id6748947657/reviews.md

## What is DecibelMasterJ?

Instantly measure, visualize, and understand the noise levels around you.


## Version history (last 3 releases)

### 1.1 — 2025-08-19

我们听取了您的反馈，并带来了重大的功能升级！
新增手动校准: 现在您可以在设置页面通过滑块 (±30dB) 对测量进行微调，让读数与专业设备更加匹配。
新增恢复默认值: 一键恢复出厂校准设置。
实时校准预览: 在设置页面，您可以实时看到校准调整带来的动态变化。

We've listened to your feedback and are excited to introduce a major feature update!
Manual Calibration Added: You can now fine-tune your measurements in the new Settings page with a ±30dB offset slider to better match reference devices.
Reset to Default: Easily restore the factory calibration settings with a single tap.
Live Calibration Preview: See the effect of your adjustments in real-time right from the settings screen.

### 1.0.1 — 2025-07-25

Supports iOS 15 and above.

### 1.0 — 2025-07-24

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-18.*