# ZeroClock零时钟 vs Flip Clock

ZeroClock零时钟 and Flip Clock are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. ZeroClock零时钟 sells 1 one-off in-app purchase and Flip Clock sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ZeroClock零时钟 ships an update every 3 weeks, Flip Clock fortnightly. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ZeroClock零时钟 | Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flip-clock-digital-clock/id6596743151/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 27 MB | 122 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [昌飞 佘](https://appshunter.io/developer/1574625447) | [深圳市未来技术科技有限公司](https://appshunter.io/developer/1590320102) |

## What reviewers say

### ZeroClock零时钟

[App page](https://appshunter.io/ios/app/zeroclock/id1574644243)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


### Flip Clock

[App page](https://appshunter.io/ios/app/flip-clock-digital-clock/id6596743151)

This app offers a visually appealing digital clock with a classic page-flipping animation and customizable themes. It can display seconds, dates, and features natural soundscapes for a calming environment. It also includes alarm and timed reminder functions.

**Highlights:** Full screen page flipping animation, Customizable themes and backgrounds, Displays seconds and date, Natural soundscapes for ambiance, Hour-by-hour and alarm clock functions, Assisted learning and focused work tool

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Members | $5.99 | per 7 days |
| Annual Membership | $29.99 | per year |


## Frequently asked questions

### Is ZeroClock零时钟 free?

ZeroClock零时钟 is free to download, with in-app purchases available.

### Is Flip Clock free?

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

### Do ZeroClock零时钟 or Flip Clock have ads?

Neither ZeroClock零时钟 nor Flip Clock shows ads.

### Which is updated more often, ZeroClock零时钟 or Flip Clock?

ZeroClock零时钟 ships an update every 3 weeks, and Flip Clock fortnightly. Most recently, ZeroClock零时钟 was updated on October 10, 2026 and Flip Clock on October 1, 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.*