# AALock vs 分贝仪

The clearest difference is in-app purchases: AALock at none against 分贝仪's 1. AALock also leads on iOS requirement (12.0 vs 16.0). 分贝仪's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. 分贝仪 sells 1 one-off in-app purchase. AALock asks for nothing beyond the download.

## The numbers

| Metric | AALock | 分贝仪 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6790077880/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 3 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [广东成学在线科技有限公司](https://appshunter.io/developer/1591136431) | [Wuhan Xingyun Technology Co., Ltd.](https://appshunter.io/developer/1853186645) |

## What reviewers say

### AALock

[App page](https://appshunter.io/ios/app/aalock/id6450358948)

**Features:** macOS Compatibility

**In-app purchases:** none


### 分贝仪

[App page](https://appshunter.io/ios/app/id6790077880)

Measure and record ambient noise levels with real-time decibel readings. Visualize sound data with various dashboards, track noise history, and overlay decibel information onto photos and videos. Customize your experience with dark mode and app icons.

**Highlights:** Real-time decibel measurement, Multiple dashboard styles, Noise level classification, Measurement history and graphs, Video recording with decibel overlay, Photo annotation with decibel, Location and device information

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FenBeiYi Pro | $0.99 | one-time |


## Frequently asked questions

### Is AALock free?

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

### Is 分贝仪 free?

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

### Do AALock or 分贝仪 have ads?

AALock shows ads; 分贝仪 does not.

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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.*