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 utility app displays the current day, time, and date in a large, full-screen digital format. It offers customization options for clock digit color and includes integrated alarm, timer, and stopwatch functionalities with advanced settings like repetition and lap tracking.

Highlights
  • Full-screen digital clock display
  • Customizable digit colors
  • Multiple alarm settings
  • Countdown timer
  • Stopwatch with lap feature
  • Display day and date
Features
Read full description

Big Clock: The Ultimate High-Visibility Digital Display. Never struggle to read the time again. Big Digital Clock transforms your entire screen into a massive, crystal-clear time hub. Whether you need a reliable bedside clock for your nightstand or a giant countdown timer for the gym, our app delivers maximum visibility with a minimalist touch. WHY USERS LOVE BIG CLOCK: The Biggest Display: A true full-screen experience designed for visibility from across the room. Aesthetic Themes: Personalize your display with vibrant neon colors and high-contrast glow effects. Precision Tools: Includes a high-contrast Stopwatch with Laps and a Countdown Timer for workouts or study sessions. Smart Nightstand Alarms: Set multiple alarms with custom snooze, repetition, and loud wake-up tones. KEY FEATURES: 12/24 Hour Toggle: Switch formats instantly to suit your preference. Full Customization: Use the professional color picker to match your room’s aesthetic. Stay Punctual: A simple, distraction-free interface that stays active while you work or sleep. Stay punctual with the most readable clock on the App Store. Download Big Digital Clock today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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 Clock4 screens
Digital Clock Ultra4 screens

Verdict

The call

The clearest difference is review sentiment: Digital Clock Ultra at 100% against Big Clock's 0%. Digital Clock Ultra also leads on rating (4.8 vs 3.5) and in-app purchases (none vs 3). On price, ratings volume, device support and iOS requirement 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. Big Clock sells 3 in-app purchases, starting at $4.99 per 7 days. Digital Clock Ultra asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Digital Clock Ultra holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 0% of Big Clock's written reviews are positive against 100% of Digital Clock Ultra's.

UpkeepUpdate frequency

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

Scorecard6 real differences · 4 level
Big Clock versus Digital Clock Ultra: the parameters behind the verdict, then further details
ParameterBig ClockDigital Clock Ultra
PriceFreeFree
Rating3.5 (4 ratings)4.8 (8 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings48 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supportedFree — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.017.0 — better
Further details — not scored
Size66 MB42 MB
Age rating4+4+
DeveloperKevin GhoriSeungJun Lee

Customer experience

Big Clock

All ratings3 ratings
Positive33.3%
Neutral33.3%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
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

3 purchases

Big Clock

Subscriptions3
  • Big Digital Clock Weekly Plan$4.997 Days
  • Big Digital Clock Monthly Plan$9.991 Month
  • Big Digital Clock Yearly Plan$49.991 Year
None

Digital Clock Ultra

No in-app purchases

Questions

Is Big Clock free?
Big Clock is free to download, with in-app purchases available.
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 3.5 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?
Big Clock shows ads; Digital Clock Ultra does not.
Which is updated more often, Big Clock or Digital Clock Ultra?
Big Clock ships an update every 3 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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