Big Clock vs SClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Big Clock
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.
- Edge-to-edge time display
- Crisp font for XDR/Liquid Retina
- Dark mode support
- 12/24 hour format
- Customizable clock face styling
- Offline functionality
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Big Clock is designed specifically for iOS users. With an optimised layout for iOS devices, the time can be shown from edge to edge on the display for better readability and usability. For devices adopting XDR or Liquid Retina display technologies, a more crisp and clear font can be shown. FEATURES * Dark mode (night mode) is supported natively in app. The clock face can be viewed comfortably whenever it is in day time or in dark. * The clock can be displayed in either 12/24 time format. * Styling your own clock face with bold font, or to choose showing/hiding the seconds counter. * Timing and clock styling are made within the app. No network connection is required. For accurate time display, please make sure your phone’s clock is in-sync with the timezone that you’re in. * As no third-parties is involved within the process, all data are kept within the app. Made by PPES Developers & Contributors
SClock
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.
- Adjustable display size
- Color selectable clock face
- Dual timer functionality
- Customizable countdown sounds
- Color-coded time display
- Simple, easy-to-read design
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・ 24H / 12H calendar Simple clock function with color selectable ・The sound before the start, the countdown sound, the color display can be changed according to the remaining time, and the two timers can be switched, making it ideal for pomodoro timers, etc.The sound before the start, the countdown sound, the color display can be changed according to the remaining time, and the two timers can be switched, making it ideal for pomodoro timers, etc. ・By switching between large format and middle size display, it is easy to use at hand and has excellent visibility from a distance in a wide place. ・Simple and easy-to-read design. You can use it in any situation such as studying, meetings, presentations, sports, fitness, cooking, etc.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Big Clock | SClock |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (4 ratings) | 4.3 (24 ratings) — better |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| Number of ratings | 4 | 24 — better |
| Update frequency | Every 31 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 8 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Philip Tam | Hajime Suzuki |
Customer experience
Big Clock
SClock
In-app purchases
Big Clock
No in-app purchases
SClock
- premium$0.991 Month









