# SFClock vs ZenFlip

The clearest difference is update cadence: ZenFlip at every 2 months against SFClock's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SFClock ships an update every 5 months, ZenFlip every 2 months. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SFClock | ZenFlip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/sfclock/id1627863783/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 0 MB | 1 MB |
| Requires iOS | 17.0 | **16** |
| Devices | iPhone, iPad, Vision Pro | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yafei Dong](https://appshunter.io/developer/1562436731) | [成东 胡](https://appshunter.io/developer/1643805379) |

## What reviewers say

### SFClock

[App page](https://appshunter.io/ios/app/sfclock/id1627863783)

This utility app displays a flip clock and calendar. It offers customizable clock settings like 12/24 hour format and seconds display. Users can navigate the calendar and choose from various light and dark color themes.

**Highlights:** Flip clock display, Calendar view, 12/24 hour format, Seconds display toggle, Calendar month navigation, Color themes, Light/dark mode

**Features:** macOS Compatibility

**In-app purchases:** none


### ZenFlip

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

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

**In-app purchases:** none


## Frequently asked questions

### Is SFClock free?

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

### Is ZenFlip free?

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

### Do SFClock or ZenFlip have ads?

Neither SFClock nor ZenFlip shows ads.

### Which is updated more often, SFClock or ZenFlip?

SFClock ships an update every 5 months, and ZenFlip every 2 months. Most recently, SFClock was updated on October 2, 2026 and ZenFlip 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.*