# sound vs 专注一下

The clearest difference is in-app purchases: sound at none against 专注一下's 3. 专注一下's advantage is update cadence (every 6 weeks vs every 4 months) and iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. 专注一下 sells 3 in-app purchases, starting at $1.99 per month. sound asks for nothing beyond the download.

sound ships an update every 4 months, 专注一下 every 6 weeks. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | sound | 专注一下 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 135 MB | 100 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [祖浪 吴](https://appshunter.io/developer/1883572387) | [晓 杨](https://appshunter.io/developer/1787793900) |

## What reviewers say

### sound

[App page](https://appshunter.io/ios/app/sound-time/id6776622151)

This app helps you focus and learn with a Pomodoro timer and white noise generator. Track your progress with detailed statistics and enjoy a seamless experience with dark mode and dynamic island support.

**Highlights:** Pomodoro focus mode, Customizable timer and sound alerts, White noise sound library, Focus time statistics, Home screen widgets, Dark mode and Dynamic Island support

**Features:** macOS Compatibility

**In-app purchases:** none


### 专注一下

[App page](https://appshunter.io/ios/app/id6795566979)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $1.99 | per month |
| 年度会员 | $9.99 | per year |
| 终生会员 | $29.99 | one-time |


## Frequently asked questions

### Is sound free?

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

### Is 专注一下 free?

专注一下 is free to download, with in-app purchases available.

### Do sound or 专注一下 have ads?

Neither sound nor 专注一下 shows ads.

### Which is updated more often, sound or 专注一下?

sound ships an update every 4 months, and 专注一下 every 6 weeks. Most recently, sound was updated on October 28, 2026 and 专注一下 on October 29, 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.*