# Fullscreen Clock vs When

The clearest difference is in-app purchases: When at none against Fullscreen Clock's 1. When also leads on review sentiment (90% vs 76%) and iOS requirement (10.0 vs 15.0). Fullscreen Clock's advantage is ratings volume (2.2K vs 28). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Fullscreen Clock sells 1 one-off in-app purchase. When asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Fullscreen Clock against 4.7 for When. That said, the two scores are not equally well evidenced: Fullscreen Clock has 2.2K ratings behind it against 28, so its average is the more settled of the two. Written reviews are what separate them: 76% of Fullscreen Clock's written reviews are positive against 90% of When's.

Fullscreen Clock ships an update every 8 days, When weekly. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Fullscreen Clock | When |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (2.2K ratings)](https://appshunter.io/ios/app/fullscreen-clock-flip-and-focus/id1403700342/reviews) | [4.7 (28 ratings)](https://appshunter.io/ios/app/when-flip-clock/id1539325158/reviews) |
| Number of ratings | **2.2K** | 28 |
| Positive reviews | 75.9% of reviews | **90.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 18 MB | 73 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Gude Aipu Technology Co., Ltd](https://appshunter.io/developer/1896411340) | [磊 岑](https://appshunter.io/developer/1102462338) |

## What reviewers say

### Fullscreen Clock

[App page](https://appshunter.io/ios/app/fullscreen-clock-flip-and-focus/id1403700342)

Transform your device into a stylish flip clock that doubles as a productivity tool. Enhance your workspace with aesthetic widgets and utilize the integrated focus timer for improved concentration during study or work sessions.

**Highlights:** Iconic flip clock animation, Deep focus timer (Pomodoro/custom), Stunning home screen widgets, Elegant and minimalist interface, Extensive customization options, Versatile timers and stopwatch, Floating clock for iPadOS

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $2.99 | one-time |

**What reviewers like**

- 🚀 Efficient
- 👍 Simple and useful
- 👍 Great tool
- 👍 Excellent app
- 👍 Awesome clock

**What reviewers complain about**

- 🐛 Ads disrupt usage
- 🐛 Buggy widget
- 🔋 Drains battery
- 👎 Hard to exit
- 👎 Annoying ads

**Reported bugs**

- Widget doesn't adjust for DST
- Clock resets when exiting app
- Hangs up on some devices
- Ads cover the clock

**Requested features**

- Add color customization
- Integrate date display
- Add 12-hour time format with AM/PM
- Improve countdown timer functionality
- Add stopwatch widget


### When

[App page](https://appshunter.io/ios/app/when-flip-clock/id1539325158)

This app offers a minimalist flip clock experience with customizable widgets. It features a full-screen display with classic page-turning animations and adjustable brightness. Personalize your time display with options for seconds, date, and week.

**Highlights:** Full-screen classic flip animation, Minimalist design style, Customizable time display (seconds, date, week), 12/24 hour mode switching, Adjustable screen brightness, Multiple widget options (Flip Clock, Digital Clock, Calendar, Progress Bar, Disc Clock)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fullscreen Clock free?

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

### Is When free?

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

### Which has better reviews, Fullscreen Clock or When?

Fullscreen Clock and When are both rated 4.7 out of 5 on the App Store, from 2.2K and 28 ratings respectively.

### Do Fullscreen Clock or When have ads?

Both Fullscreen Clock and When show ads.

### Which is updated more often, Fullscreen Clock or When?

Fullscreen Clock ships an update every 8 days, and When weekly. Most recently, Fullscreen Clock was updated on October 3, 2026 and When 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.*