# ZenFlip vs O'Clock

The clearest difference is price: ZenFlip at Free against O'Clock's $9.99. ZenFlip also leads on update cadence (every 3 weeks vs every 2 months). O'Clock's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

ZenFlip is free to download; O'Clock costs $9.99 up front. ZenFlip sells 1 one-off in-app purchase. O'Clock asks for nothing beyond the download.

ZenFlip ships an update every 3 weeks, O'Clock every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ZenFlip | O'Clock |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 2 MB | 1 MB |
| Requires iOS | **16** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [成东 胡](https://appshunter.io/developer/1643805379) | [MOHAMMAD ALQARNI](https://appshunter.io/developer/1852116408) |

## What reviewers say

### ZenFlip

[App page](https://appshunter.io/ios/app/zenflip-full-screen-clock/id6443968056)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $3.99 | one-time |


### O'Clock

[App page](https://appshunter.io/ios/app/oclock-minimalist-widgets/id6758892170)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZenFlip free?

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

### Is O'Clock free?

O'Clock costs $9.99, with no in-app purchases.

### Do ZenFlip or O'Clock have ads?

Neither ZenFlip nor O'Clock shows ads.

### Which is updated more often, ZenFlip or O'Clock?

ZenFlip ships an update every 3 weeks, and O'Clock every 2 months. Most recently, ZenFlip was updated on November 3, 2026 and O'Clock on October 31, 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.*