# OneClock vs Flip Clock

The clearest difference is review sentiment: OneClock at 83% against Flip Clock's 0%. OneClock also leads on ads (none vs shown) and rating (3.9 vs 3.6). Flip Clock's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (every 2 weeks vs every 3 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. OneClock sells 2 in-app purchases, starting at $0.99 per month and Flip Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

OneClock holds the better App Store score, 3.9 against 3.6. Both are backed by a comparable volume of ratings — 9 and 5 respectively. Written reviews point the same way: 83% of OneClock's written reviews are positive against 0% of Flip Clock's.

OneClock ships an update every 3 months, Flip Clock every 2 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | OneClock | Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (9 ratings)](https://appshunter.io/ios/app/oneclock-a-simple-flip-clock/id1257395357/reviews)** | [3.6 (5 ratings)](https://appshunter.io/ios/app/flip-clock-countdown-days/id1504377117/reviews) |
| Number of ratings | **9** | 5 |
| Positive reviews | **83.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 11 MB | 44 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Reinvent Technology Co., Ltd.](https://appshunter.io/developer/1250290964) | [GSNT Co., Ltd.](https://appshunter.io/developer/1504377116) |

## What reviewers say

### OneClock

[App page](https://appshunter.io/ios/app/oneclock-a-simple-flip-clock/id1257395357)

This app offers a variety of customizable clock styles for desktop and mobile devices. Enjoy features like adjustable display modes, font customization, and transparency settings, with multiple clock designs available.

**Highlights:** Multiple clock styles (Flip, Digital, Dial), Desktop display on macOS, Customizable font and transparency, Portrait and landscape modes, Screen not quenching, Home screen and widget support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $9.99 | per year |


### Flip Clock

[App page](https://appshunter.io/ios/app/flip-clock-countdown-days/id1504377117)

This analog clock app helps users manage their time with countdown features for important events and exams. It offers customizable displays and skins to personalize the user experience.

**Highlights:** Analog clock display, Time countdown function, Day countdown for events, Customizable display settings, Switchable skins

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| senior member | $0.99 | one-time |


## Frequently asked questions

### Is OneClock free?

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

### Is Flip Clock free?

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

### Which has better reviews, OneClock or Flip Clock?

OneClock is rated higher. OneClock averages 3.9 out of 5 from 9 ratings, while Flip Clock averages 3.6 from 5 ratings.

### Do OneClock or Flip Clock have ads?

Flip Clock shows ads; OneClock does not.

### Which is updated more often, OneClock or Flip Clock?

OneClock ships an update every 3 months, and Flip Clock every 2 weeks. Most recently, OneClock was updated on October 24, 2026 and Flip Clock on October 18, 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.*