# Flip Clock Pro vs OneClock

The clearest difference is price: OneClock at Free against Flip Clock Pro's $2.99. OneClock also leads on review sentiment (83% vs 74%). Flip Clock Pro's advantage is rating (4.6 vs 3.9) and in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

OneClock is free to download; Flip Clock Pro costs $2.99 up front. OneClock sells 2 in-app purchases, starting at $0.99 per month. Flip Clock Pro asks for nothing beyond the download.

Flip Clock Pro holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Flip Clock Pro has 1.5K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 74% of Flip Clock Pro's written reviews are positive against 83% of OneClock's, so the app with the better star average is not the one people write more warmly about.

Flip Clock Pro ships an update every 2 months, OneClock every 3 months. The most recent releases landed on September 30, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Flip Clock Pro | OneClock |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.6 (1.5K ratings)](https://appshunter.io/ios/app/flip-clock-pro-time-widgets/id1181029289/reviews)** | [3.9 (9 ratings)](https://appshunter.io/ios/app/oneclock-a-simple-flip-clock/id1257395357/reviews) |
| Number of ratings | **1.5K** | 9 |
| Positive reviews | 74.1% of reviews | **83.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Paid** | Subscription |
| Size | 46 MB | 11 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [翠玲 施](https://appshunter.io/developer/1181028776) | [Chengdu Reinvent Technology Co., Ltd.](https://appshunter.io/developer/1250290964) |

## What reviewers say

### Flip Clock Pro

[App page](https://appshunter.io/ios/app/flip-clock-pro-time-widgets/id1181029289)

A minimalist desktop digital clock offering a variety of customization options. It displays time with seconds, includes a smart alarm, timer, stopwatch, and Pomodoro timer. The app also supports white noise and personalized signatures.

**Highlights:** Display time with seconds, Smart alarm clock, Timer and stopwatch, Pomodoro Technique timer, Multiple clock themes, Background white noise playback, Home and lock screen widgets

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great app with lots of customization options
- 👍 Useful features like alarm clock and vertical flip clock
- 👍 Simple and clean interface
- 👍 Visible from a distance
- 👍 Nostalgic retro style

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🐛 Inconsistent sound and alarm issues
- 🐛 Seconds digit freezing up
- 🐛 Widget not respecting app settings
- 🔋 Brightness issues and screen burn-in concerns

**Reported bugs**

- Seconds digit freezing
- Widget not showing 12-hour time format
- Brightness issues when leaving app open
- Inconsistent sound and alarm problems

**Requested features**

- Add more alarm sound options
- Allow customization of alarm sound from music library
- Implement a snooze function
- Add ability to set multiple alarm times
- Provide more color and font customization options


### 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 |


## Frequently asked questions

### Is Flip Clock Pro free?

Flip Clock Pro costs $2.99, with no in-app purchases.

### Is OneClock free?

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

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

Flip Clock Pro is rated higher. Flip Clock Pro averages 4.6 out of 5 from 1.5K ratings, while OneClock averages 3.9 from 9 ratings.

### Do Flip Clock Pro or OneClock have ads?

Neither Flip Clock Pro nor OneClock shows ads.

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

Flip Clock Pro ships an update every 2 months, and OneClock every 3 months. Most recently, Flip Clock Pro was updated on September 30, 2026 and OneClock on September 26, 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.*