# 时间沙漏：自律专注倒计时 vs 待办鸭

The clearest difference is device support: 待办鸭 at 2 against 时间沙漏：自律专注倒计时's —. On price, in-app purchases and iOS requirement 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 | 时间沙漏：自律专注倒计时 | 待办鸭 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Size | 18 MB | 3 MB |
| Requires iOS | **16** | 17.6 |
| Devices | — | **iPhone, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Duoxiang Technology Co., Ltd](https://appshunter.io/developer/1534573413) | [朝峰 陈](https://appshunter.io/developer/1868597907) |

## What reviewers say

### 时间沙漏：自律专注倒计时

[App page](https://appshunter.io/ios/app/id6747423701)

**In-app purchases:** none


### 待办鸭

[App page](https://appshunter.io/ios/app/and/id6757746591)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 时间沙漏：自律专注倒计时 free?

时间沙漏：自律专注倒计时 is free to download, with no in-app purchases.

### Is 待办鸭 free?

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

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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.*