# 双环时钟 vs MistClock

The clearest difference is update cadence: MistClock at every 11 days against 双环时钟's every 5 weeks. 双环时钟's advantage is device support (4 vs 2) and iOS requirement (12.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 双环时钟 sells 2 in-app purchases, starting at $1.99 per month and MistClock sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

双环时钟 ships an update every 5 weeks, MistClock every 11 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 双环时钟 | MistClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Size | 117 MB | 277 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KAIROS Company Limited](https://appshunter.io/developer/1495144014) | [涛 许](https://appshunter.io/developer/1862012706) |

## What reviewers say

### 双环时钟

[App page](https://appshunter.io/ios/app/id1599638541)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 双环时钟月费高级会员 | $1.99 | per month |
| 双环时钟年费高级会员 | $19.99 | per year |


### MistClock

[App page](https://appshunter.io/ios/app/mistclock-rain-and-focus-timer/id6756723515)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MistClock - annual month | $3.99 | per month |
| Early Bird Price | $9.99 | one-time |


## Frequently asked questions

### Is 双环时钟 free?

双环时钟 is free to download, with in-app purchases available.

### Is MistClock free?

MistClock is free to download, with in-app purchases available.

### Do 双环时钟 or MistClock have ads?

Neither 双环时钟 nor MistClock shows ads.

### Which is updated more often, 双环时钟 or MistClock?

双环时钟 ships an update every 5 weeks, and MistClock every 11 days. Most recently, 双环时钟 was updated on November 3, 2026 and MistClock on November 5, 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.*