Comparison

Big Clock vs SClock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

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.

Highlights
  • Adjustable display size
  • Color selectable clock face
  • Dual timer functionality
  • Customizable countdown sounds
  • Color-coded time display
  • Simple, easy-to-read design
Features
Read full description

・ 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

Big Clock3 screens
SClock4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard7 real differences · 3 level
Big Clock versus SClock: the parameters behind the verdict, then further details
ParameterBig ClockSClock
PriceFreeFree
Rating2.3 (4 ratings)4.3 (24 ratings) — better
Positive reviews50.0% of reviews50.0% of reviews
Number of ratings424 — better
Update frequencyEvery 31 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.1
Further details — not scored
Size8 MB30 MB
Age rating4+4+
DeveloperPhilip TamHajime Suzuki

Customer experience

Big Clock

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

SClock

All ratings24 ratings
Positive83.3%
Neutral4.2%
Negative12.5%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Big Clock

No in-app purchases

1 purchases

SClock

Subscriptions1
  • premium$0.991 Month

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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