Comparison

OLED Clock vs Digital Clock

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

Head to head
About

OLED Clock

This app displays a dynamic clock designed to prevent OLED screen burn-in by constantly moving and changing colors. It offers customizable digital and analog views with various fonts, sizes, and animation speeds.

Highlights
  • OLED burn-in prevention
  • Animated clock movement
  • Color cycling
  • Digital and analog views
  • Customizable fonts and size
  • Adjustable animation speed
Features
Read full description

No burn-In! This clock is perfectly suited for the OLED display in iPhone X, because the clock won't stand still on the screen but moves around constantly using any available pixel of the screen over time. Also it smoothly changes color over the complete color spectrum, so that every sub pixel (red, green, blue) will be used evenly. This prevents the so called "burn-in effect" any OLED display shows, if certain pixels are switched on for a very long time. The clock not just works on iPhone X but on all iOS devices like iPhone, iPod Touch and iPad (iOS 9.3 and above). But there's more: - NEW: digital and analog representation of the clock. You choose! - choose between a huge number of nice looking fonts to display the actual time - adjust clocks size just by using the pinch gesture on main screen - use automatic color changes "color cycling" (recommended on iPhone x, can be switched off in settings) - adjust the clocks brightness by using scroll up and down gesture on the main screen - tap on the main screen to show tab bar at the bottom of the screen, here you will be able to switch between analog and digital view, call settings, help and about page - on settings page you can change font, color and animation speed as well as switch on/off seconds, blinking separators, 24h display, autosize and color cycling - all adjustments are permanent! OLED clock remembers them on the next time you use it! - use OLED clock in portrait or landscape mode. On digital mode, OLED clock remembers your preferred font size depending on device orientation - help page provides necessary information about usage - fully localized in english, german, hebrew, french and japanese (new!)

About

Digital Clock

Transform your device into a stylish digital clock with a customizable LED display. Choose from various time formats, colors, and fonts. Includes white noise for focus or sleep and an alarm function.

Highlights
  • Customizable LED display
  • 12/24 hour mode
  • Show/hide date
  • Font and color selection
  • White noise generator
  • Alarm function
Features
Read full description

This is a beautiful digital clock for those who want to have a digital clock on their nightstand or coffee table. You can change the color to almost whatever you want. It shows you various time elements and you can use a few different time and date formats, colors, and clock faces. The app is very affordable which is a great deal for one of the simplest, but best clock apps. Features: - Beautiful digital display - Switch between 12 and 24 modes - Show or hide date - Select your preferable font or color - Play white noise to help you focus or sleep - Set alarm and never miss any important event White noise included such as: River stream, Ocean waves, Underground cave, Soft rain, Crackling fire, Sizzling pan, Birds chirping, Summer crickets, Noise fan, ASMR, Deep sea, Midnight crickets, Beach seagulls, Cave water dripping, Crackling fireplace, Pot boiling, Green forest, Peaceful ambience, Clock ticking, Footstep Notes: - The auto lock will be disabled while the clock is active. - It doesn’t start automatically like the Mac screensaver. Please leave us your review, we will do our best to improve the app.

Screenshots

OLED Clock4 screens
Digital Clock4 screens

Verdict

The call

The clearest difference is rating: Digital Clock at 4.4 against OLED Clock's 3.9. Digital Clock also leads on ratings volume (153 vs 15). OLED Clock's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price, update cadence 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. Digital Clock sells 6 in-app purchases, starting at $1.99 per month. OLED Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Digital Clock holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: Digital Clock has 153 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 79% of OLED Clock's written reviews are positive against 65% of Digital Clock's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

OLED Clock ships an update every 4 weeks, Digital Clock every 6 weeks. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

Scorecard7 real differences · 3 level
OLED Clock versus Digital Clock: the parameters behind the verdict, then further details
ParameterOLED ClockDigital Clock
PriceFreeFree
Rating3.9 (15 ratings)4.4 (153 ratings) — better
Positive reviews78.6% of reviews — better65.5% of reviews
Number of ratings15153 — better
Update frequencyEvery 4 weeks — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size10 MB36 MB
Age rating4+4+
DeveloperChristian MoellerEdwin Chan

Customer experience

OLED Clock

All ratings15 ratings
Positive66.7%
Neutral13.3%
Negative20.0%
Written reviews28 reviews
Positive78.6%
Neutral7.1%
Negative14.3%

Digital Clock

All ratings153 ratings
Positive83.0%
Neutral4.6%
Negative12.4%
Written reviews84 reviews
Positive65.5%
Neutral11.9%
Negative22.6%

Bugs and requests

OLED Clock

Not enough reviews yet to summarise bugs or requests.

Digital Clock

Reported bugs

4 issues
  • App display cuts off numbers on iPad Pro (resolved in v15.1)
  • App times out with phone's auto-lock feature
  • Date format inconsistency (TUE, 29 NOV vs TUE, NOV 29)
  • Reminder feature unclear/non-functional as alarm

Requested features

11 requests
  • Alarm functionality (not just reminders)
  • In-app brightness adjustment without leaving app
  • Eliminate or dim the white navigation bar at bottom
  • Full-screen mode to hide status bar and home indicator
  • Easy landscape/portrait orientation toggle within app
Show 6 more
  • Screen burn prevention with kinetic display
  • Battery level indicator display
  • Timer functionality
  • Prevent screen auto-lock while app is open
  • Additional font options without review requirement
  • Better documentation and instructions

In-app purchases

None

OLED Clock

No in-app purchases

6 purchases

Digital Clock

Subscriptions2
  • Monthly$1.991 Month
  • Yearly Trials3 Days trial$12.991 Year
One-time4
  • Clock Font$0.99
  • Clock Skin$1.99
  • All Features$24.99
Show 1 more
  • Remove Ads$24.99

Questions

Is OLED Clock free?
OLED Clock is free to download, with no in-app purchases.
Is Digital Clock free?
Digital Clock is free to download, with in-app purchases available.
Which has better reviews, OLED Clock or Digital Clock?
Digital Clock is rated higher. OLED Clock averages 3.9 out of 5 from 15 ratings, while Digital Clock averages 4.4 from 153 ratings.
Do OLED Clock or Digital Clock have ads?
Digital Clock shows ads; OLED Clock does not.
Which is updated more often, OLED Clock or Digital Clock?
OLED Clock ships an update every 4 weeks, and Digital Clock every 6 weeks. Most recently, OLED Clock was updated on September 20, 2026 and Digital Clock on September 22, 2026.

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