# Big Clock vs SClock

The clearest difference is rating: SClock at 4.3 against Big Clock's 2.3. SClock also leads on update cadence (fortnightly vs every 31 months) and ratings volume (24 vs 4). Big Clock's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

Both are free to download. SClock sells 1 in-app purchase, starting at $0.99 per month. Big Clock asks for nothing beyond the download.

SClock holds the better App Store score, 4.3 against 2.3. That said, the two scores are not equally well evidenced: SClock has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

Big Clock ships an update every 31 months, SClock fortnightly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Big Clock | SClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (4 ratings)](https://appshunter.io/ios/app/big-clock-digital/id1456244261/reviews) | **[4.3 (24 ratings)](https://appshunter.io/ios/app/sclock-big-digital-clock/id1633448389/reviews)** |
| Number of ratings | 4 | **24** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 30 MB |
| Requires iOS | **14.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Philip Tam](https://appshunter.io/developer/1017337810) | [Hajime Suzuki](https://appshunter.io/developer/1615906018) |

## 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


### SClock

[App page](https://appshunter.io/ios/app/sclock-big-digital-clock/id1633448389)

This app offers a customizable clock with adjustable display sizes and color options. It features dual timers with customizable sounds and visual cues, perfect for time management tasks like Pomodoro.

**Highlights:** Adjustable display size, Color selectable clock face, Dual timer functionality, Customizable countdown sounds, Color-coded time display, Simple, easy-to-read design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| premium | $0.99 | per month |


## Frequently asked questions

### Is Big Clock free?

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

### Is SClock free?

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

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

SClock is rated higher. Big Clock averages 2.3 out of 5 from 4 ratings, while SClock averages 4.3 from 24 ratings.

### Do Big Clock or SClock have ads?

SClock shows ads; Big Clock does not.

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

Big Clock ships an update every 31 months, and SClock fortnightly. Most recently, Big Clock was updated on October 2, 2026 and SClock on October 6, 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.*