# Big Clock vs When

The clearest difference is rating: When at 4.7 against Big Clock's 2.3. When also leads on review sentiment (90% vs 50%) and update cadence (weekly vs every 31 months). Big Clock's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, 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.

When holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: When has 28 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Big Clock's written reviews are positive against 90% of When's.

Big Clock ships an update every 31 months, When weekly. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Big Clock | When |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (4 ratings)](https://appshunter.io/ios/app/big-clock-digital/id1456244261/reviews) | **[4.7 (28 ratings)](https://appshunter.io/ios/app/when-flip-clock/id1539325158/reviews)** |
| Number of ratings | 4 | **28** |
| Positive reviews | 50.0% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 8 MB | 73 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Philip Tam](https://appshunter.io/developer/1017337810) | [磊 岑](https://appshunter.io/developer/1102462338) |

## What reviewers say

### Big Clock

[App page](https://appshunter.io/ios/app/big-clock-digital/id1456244261)

This app displays the time edge-to-edge on iOS devices, offering enhanced readability with crisp fonts for advanced displays. Customize your clock face with bold fonts, choose time formats, and toggle seconds. It functions offline and prioritizes user data privacy.

**Highlights:** Edge-to-edge time display, Crisp font for XDR/Liquid Retina, Dark mode support, 12/24 hour format, Customizable clock face styling, Offline functionality

**In-app purchases:** none


### 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 Big Clock free?

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

### Is When free?

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

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

When is rated higher. Big Clock averages 2.3 out of 5 from 4 ratings, while When averages 4.7 from 28 ratings.

### Do Big Clock or When have ads?

When shows ads; Big Clock does not.

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

Big Clock ships an update every 31 months, and When weekly. Most recently, Big Clock was updated on October 2, 2026 and When on October 14, 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.*