# 彩虹时钟 vs Pomodoro Timer

The clearest difference is ads: 彩虹时钟 at none against Pomodoro Timer's shown. Pomodoro Timer's advantage is update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (15.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 彩虹时钟 sells 2 in-app purchases, starting at $6.99 per year and Pomodoro Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

彩虹时钟 ships an update every 6 weeks, Pomodoro Timer every 3 weeks. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 彩虹时钟 | Pomodoro Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 95 MB | 4 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rainbow Forest Co., Ltd](https://appshunter.io/developer/1739974336) | [Black Cigar Apps, LLC](https://appshunter.io/developer/552986097) |

## What reviewers say

### 彩虹时钟

[App page](https://appshunter.io/ios/app/id6482986395)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 彩虹PRO 年度订阅 | $6.99 | per year |
| 永久彩虹PRO 会员 | $14.99 | one-time |


### Pomodoro Timer

[App page](https://appshunter.io/ios/app/pomodoro-timer-focus-time/id6744838140)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $7.99 | one-time |


## Frequently asked questions

### Is 彩虹时钟 free?

彩虹时钟 is free to download, with in-app purchases available.

### Is Pomodoro Timer free?

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

### Do 彩虹时钟 or Pomodoro Timer have ads?

Pomodoro Timer shows ads; 彩虹时钟 does not.

### Which is updated more often, 彩虹时钟 or Pomodoro Timer?

彩虹时钟 ships an update every 6 weeks, and Pomodoro Timer every 3 weeks. Most recently, 彩虹时钟 was updated on October 21, 2026 and Pomodoro Timer on October 11, 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.*