Comparison

Big Clock vs Digital Clock Ultra

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

Digital Clock Ultra

Customize your device's clock with personalized backgrounds, calendar integration, and a year progress tracker. Enjoy a sleek, easy-to-navigate interface for a unique time-keeping experience.

Highlights
  • Customizable digital clock display
  • 12/24 hour format
  • Built-in calendar with date marking
  • Year progress percentage tracker
  • Personalized photo backgrounds
  • Sleek and modern UI
Read full description

Transform your clock with Digital Clock Ultra! Personalize with photos, calendar, year progress tracker, and sleek design. Download now! Digital Clock Ultra is an app that provides a comprehensive time-keeping experience for users. The app includes a digital clock display that can be set to either a 12-hour or 24-hour format. The clock is displayed in large, easy-to-read digits that can be seen from a distance. In addition to the clock, Digital Clock Ultra also includes a built-in calendar that shows the current month and marks today's date with a red dot. Plus Digital Clock Ultra show Year Progress. Year Progress is a feature in Digital Clock Ultra that displays the current year's progress as a percentage. The app calculates the number of days that have passed since January 1st and displays it as a percentage, giving users a visual representation of how much of the year has already elapsed. One of the unique features of Digital Clock Ultra is the ability to set your own photos as background images. Users can choose from their own photo library or use default image. The app automatically adjusts the photo to fit the screen and adds a transparent clock overlay on top. This feature allows users to personalize the app and make it truly their own. Digital Clock Ultra is designed with a sleek and modern user interface that is easy to navigate. All the features are easily accessible from the main screen, making it easy to switch between the clock, calendar, and settings. Overall, Digital Clock Ultra is a great app for anyone who wants a customizable clock and a basic calendar experience. With its digital clock display, built-in calendar, and the ability to set your own photos as background images, this app is perfect for keeping track of time and adding a personal touch to your device.

Screenshots

Big Clock3 screens
Digital Clock Ultra4 screens

Verdict

The call

The clearest difference is review sentiment: Digital Clock Ultra at 100% against Big Clock's 50%. Digital Clock Ultra also leads on rating (4.8 vs 2.3) and update cadence (every 3 weeks vs every 31 months). Big Clock's advantage is iOS requirement (14.0 vs 17.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Digital Clock Ultra holds the better App Store score, 4.8 against 2.3. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 50% of Big Clock's written reviews are positive against 100% of Digital Clock Ultra's.

UpkeepUpdate frequency

Big Clock ships an update every 31 months, Digital Clock Ultra every 3 weeks. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Big Clock versus Digital Clock Ultra: the parameters behind the verdict, then further details
ParameterBig ClockDigital Clock Ultra
PriceFreeFree
Rating2.3 (4 ratings)4.8 (8 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings48 — better
Update frequencyEvery 31 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better17.0
Further details — not scored
Size8 MB42 MB
Age rating4+4+
DeveloperPhilip TamSeungJun Lee

Customer experience

Big Clock

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

Digital Clock Ultra

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Big Clock

No in-app purchases

None

Digital Clock Ultra

No in-app purchases

Questions

Is Big Clock free?
Big Clock is free to download, with no in-app purchases.
Is Digital Clock Ultra free?
Digital Clock Ultra is free to download, with no in-app purchases.
Which has better reviews, Big Clock or Digital Clock Ultra?
Digital Clock Ultra is rated higher. Big Clock averages 2.3 out of 5 from 4 ratings, while Digital Clock Ultra averages 4.8 from 8 ratings.
Do Big Clock or Digital Clock Ultra have ads?
Neither Big Clock nor Digital Clock Ultra shows ads.
Which is updated more often, Big Clock or Digital Clock Ultra?
Big Clock ships an update every 31 months, and Digital Clock Ultra every 3 weeks. Most recently, Big Clock was updated on October 24, 2026 and Digital Clock Ultra on October 24, 2026.

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