Comparison

ClockPhone big digital clocks vs big O'Clock

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

Head to head
About

ClockPhone big digital clocks

This app offers a stylish and functional digital clock with advanced alarm and timer features. Customize its appearance, set flexible alarms with unique dismissal methods, and utilize versatile timers for workouts or productivity.

Highlights
  • Advanced alarm with flexible repeats
  • Unique alarm dismissal methods (NFC, QR, math)
  • Versatile timer for workouts and productivity
  • Customizable digital clock display
  • Home screen widgets
  • Gesture controls
Features
Read full description

ClockPhone is a stylish and functional clock app that’s easy to use. It features an advanced alarm with flexible repeat settings: by day of the week, on a specific date, or following a shift schedule. And to make sure you really wake up, there are not just standard options to turn it off, but also advanced methods — like scanning an NFC tag, QR/barcode (for example, on a toothpaste tube in the bathroom), or solving math problems. ClockPhone also includes a versatile timer, perfect for workouts — including various interval types like Tabata, and productivity techniques like Pomodoro, 52/17, and 90/30 — as well as for cooking, meditation, and any task that needs precise time control. The app combines a thoughtfully designed interface with a rich feature set. Thanks to its stylish and attractive time display, ClockPhone fits beautifully into any space. The large digits are easy to read from any distance, and the second hand comes with different display modes for enhanced readability. Time transitions are smoothly animated, and the clock’s appearance is easy to customize via a functional and intuitive interface. Perfect for use on a charging dock or for bringing new life to a favorite device. It looks great in both landscape and portrait orientations. An onboarding guide shows how to control the app with gestures. You can also add ClockPhone widgets to your Home Screen to see the time and date at a glance without opening the app. There are two types of widgets — simple and transparent — each available in two sizes and with plenty of customization options. ● Key app features to tailor it to your needs and use it comfortably in any situation • Screen burn-in protection • Exit lock to prevent unauthorized closure • Simple and transparent widgets • Display of date and battery level • Customization of digit color, animation, thickness, and size • Random color changing of digits • Intuitive gestures: adjust brightness, toggle flashlight, open menu, resize digits • Time signals • Configurations — groups of settings that can be switched manually or on a schedule • Backups • Share settings, configurations, alarms, and timers • Time zone support • Display of analog and digital seconds • Time announcements for visually impaired users ● Alarm features to suit any routine, habit, or personal preference • Repeats by weekday, shift schedule, or specific date • Option to postpone the next trigger • Dismiss methods: standard, NFC tag scan, QR/barcode scan, or solving math problems • Support for custom sounds from the Music library or files saved in iCloud • Gradual volume increase • Flexible snooze options: number of repeats and snooze duration • Actions upon alarm dismissal ● Unique timer features to suit various use cases: interval training, productivity methods for work or study, and more • Multiple intervals with different durations • Repeat settings for entire interval series • Sound at the end of an interval or name announcement at the start • Pause or automatic transition to the next interval • Actions upon timer completion ClockPhone is constantly evolving based on user feedback. Install it on your iPhone, iPad, or iPod touch — and you won’t want to be without it!

About

big O'Clock

A full-screen clock, timer, and stopwatch app featuring large, clear digits. It offers high-quality visuals, sounds, and vibrations, serving as a stylish nightstand or work clock.

Highlights
  • Full-screen display
  • Large, clear digits
  • Customizable sounds and vibrations
  • Timer functionality
  • Stopwatch functionality
  • Nightstand mode
Features
Read full description

Big O'Clock is a clock, timer or stop watch with big digits in full screen with high quality images, sounds and vibrations Beautiful night stand or working clock

Screenshots

ClockPhone big digital clocks4 screens
big O'Clock4 screens

Verdict

The call

The clearest difference is price: ClockPhone big digital clocks at Free against big O'Clock's $0.99. ClockPhone big digital clocks also leads on update cadence (monthly vs every 12 months) and ratings volume (30K vs 11). On rating, ads, in-app purchases 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

ClockPhone big digital clocks is free to download; big O'Clock costs $0.99 up front. ClockPhone big digital clocks sells 3 one-off in-app purchases and big O'Clock sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for ClockPhone big digital clocks against 4.5 for big O'Clock. That said, the two scores are not equally well evidenced: ClockPhone big digital clocks has 30K ratings behind it against 11, so its average is the more settled of the two.

UpkeepUpdate frequency

ClockPhone big digital clocks ships an update monthly, big O'Clock every 12 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
ClockPhone big digital clocks versus big O'Clock: the parameters behind the verdict, then further details
ParameterClockPhone big digital clocksbig O'Clock
PriceFree — better$0.99
Rating4.6 (30K ratings) — better4.5 (11 ratings)
Positive reviews68.5% of reviews—
Number of ratings30K — better11
Update frequencyMonthly — betterEvery 12 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size171 MB31 MB
Age rating4+4+
DeveloperEVGENII KOSTINjohn bogaert

Customer experience

ClockPhone big digital clocks

All ratings29,636 ratings
Positive91.0%
Neutral3.9%
Negative5.2%
Written reviews492 reviews
Positive68.5%
Neutral7.9%
Negative23.6%

big O'Clock

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%

Bugs and requests

ClockPhone big digital clocks

Reported bugs

3 issues
  • Clock Now Just Displays 0000 After 1.8.5 Update
  • Version 1.8.5 Stopped Updating When Charging
  • Transparency Feature Stopped Functioning After Most Recent Update

Requested features

7 requests
  • Alarm Functionality Within App with Ability to Snooze
  • Ability to Change Font
  • Ability to Display Seconds
  • Ability to Go Directly to Apple's Clock App and Calendar App
  • Ability to Automatically Start the Clock When the Phone is Plugged In or on a MagSafe Charger
Show 2 more
  • Ability to Dim the Screen on a Timer
  • Ability to Snooze and Turn Off the Alarm Directly from the Clock Face

big O'Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

ClockPhone big digital clocks

One-time3
  • Settings+$2.99
  • AlarmClock+$3.99
  • Premium$4.99
3 purchases

big O'Clock

One-time3
  • I Love Big O'Clock$1.99
  • I Deeply Love Big O'Clock$3.99
  • I Adore Big O'Clock$6.99

Questions

Is ClockPhone big digital clocks free?
ClockPhone big digital clocks is free to download, with in-app purchases available.
Is big O'Clock free?
big O'Clock costs $0.99, and also offers in-app purchases.
Which has better reviews, ClockPhone big digital clocks or big O'Clock?
ClockPhone big digital clocks is rated higher. ClockPhone big digital clocks averages 4.6 out of 5 from 30K ratings, while big O'Clock averages 4.5 from 11 ratings.
Do ClockPhone big digital clocks or big O'Clock have ads?
Neither ClockPhone big digital clocks nor big O'Clock shows ads.
Which is updated more often, ClockPhone big digital clocks or big O'Clock?
ClockPhone big digital clocks ships an update monthly, and big O'Clock every 12 months. Most recently, ClockPhone big digital clocks was updated on October 30, 2026 and big O'Clock on October 24, 2026.

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