# sound vs 贼忙

The clearest difference is iOS requirement: 贼忙 at 17.0 against sound's 26.2. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | sound | 贼忙 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | — |
| Size | 135 MB | 15 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| 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


### 贼忙

[App page](https://appshunter.io/ios/app/id6801466335)

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

**In-app purchases:** none


## Frequently asked questions

### Is sound free?

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

### Is 贼忙 free?

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

### Do sound or 贼忙 have ads?

Neither sound nor 贼忙 shows ads.

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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.*