# Decibel：Sound Meter vs 小学语文吧

The clearest difference is in-app purchases: 小学语文吧 at none against Decibel：Sound Meter's 3. Decibel：Sound Meter's advantage is update cadence (every 11 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Decibel：Sound Meter sells 3 in-app purchases, starting at $3.99 per 7 days. 小学语文吧 asks for nothing beyond the download.

Decibel：Sound Meter ships an update every 11 days, 小学语文吧 every 6 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Decibel：Sound Meter | 小学语文吧 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/decibelsound-meter/id6473146362/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 33 MB | 178 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [ZHHUALIUON INC](https://appshunter.io/developer/1686696259) | [Shandong Yuanyuzhou Information Technology Co. LTD](https://appshunter.io/developer/1650732279) |

## What reviewers say

### Decibel：Sound Meter

[App page](https://appshunter.io/ios/app/decibelsound-meter/id6473146362)

This application offers real-time decibel measurements with high precision. It provides detailed reports, location data, and the ability to share or export audio measurements. Users can also utilize a real-time decibel camera feature.

**Highlights:** Real-time decibel measurement, High precision, Location data, Decibel camera, Measurement reports, Data sharing, Audio data export

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly membership | $3.99 | per 7 days |
| Monthly membership | $4.99 | per month |
| Annual membership | $14.99 | per year |


### 小学语文吧

[App page](https://appshunter.io/ios/app/id6475070486)

This app offers a foundational approach to learning Chinese, covering pronunciation, essential vocabulary, and character writing. It's designed for beginners to build a solid understanding of the language.

**Highlights:** Learn Pinyin for pronunciation, Study common Chinese vocabulary, Practice writing Chinese characters, Suitable for absolute beginners, Foundational Chinese language education

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decibel：Sound Meter free?

Decibel：Sound Meter is free to download, with in-app purchases available.

### Is 小学语文吧 free?

小学语文吧 is free to download, with no in-app purchases.

### Do Decibel：Sound Meter or 小学语文吧 have ads?

Both Decibel：Sound Meter and 小学语文吧 show ads.

### Which is updated more often, Decibel：Sound Meter or 小学语文吧?

Decibel：Sound Meter ships an update every 11 days, and 小学语文吧 every 6 weeks. Most recently, Decibel：Sound Meter was updated on October 30, 2026 and 小学语文吧 on October 30, 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.*