# 滚水 vs 工作留痕

The clearest difference is price: 滚水 at Free against 工作留痕's $0.99. 滚水 also leads on iOS requirement (13.0 vs 17). 工作留痕's advantage is update cadence (every 2 days vs every 25 months) and device support. On in-app purchases there is nothing between them.

滚水 is free to download; 工作留痕 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

滚水 ships an update every 25 months, 工作留痕 every 2 days. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 滚水 | 工作留痕 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 25 months | **Every 2 days** |
| Size | 34 MB | 3 MB |
| Requires iOS | **13.0** | 17 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Boiling Water Technology Co., Ltd.](https://appshunter.io/developer/1688664790) | [广亿 丁](https://appshunter.io/developer/1758979534) |

## What reviewers say

### 滚水

[App page](https://appshunter.io/ios/app/id6477358981)

**In-app purchases:** none


### 工作留痕

[App page](https://appshunter.io/ios/app/id6740536209)

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

**In-app purchases:** none


## Frequently asked questions

### Is 滚水 free?

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

### Is 工作留痕 free?

工作留痕 costs $0.99, with no in-app purchases.

### Which is updated more often, 滚水 or 工作留痕?

滚水 ships an update every 25 months, and 工作留痕 every 2 days. Most recently, 滚水 was updated on October 4, 2026 and 工作留痕 on October 9, 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.*