Comparison

Alarm Clock vs OLED Clock

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

Head to head
About

Alarm Clock

Wake up gently with your favorite music or nature sounds. This app offers a customizable alarm experience with features like a bedside clock, adjustable snooze, and a sleep timer. It also includes a widget for quick access and a unique touch-to-snooze functionality.

Highlights
  • Wake up with favorite music
  • Nature sounds for alarms
  • Bedside clock display
  • Adjustable snooze and brightness
  • Sleep timer with music
  • Widget support
Features
Read full description

Wake up easy and go to Sleep with your Favorites Music. Alarm clock, features: - 12/24 hour time mode - iTunes music for alarm - 6 different nature sounds - Bedside clock - Adjustable snooze time (optional) - Adjustable brightness - 16,7 million colors of digital clock - Sleep timer with iTunes music - Widget Use tips: - Adjust brightness: swipe diagonally from left bottom to right top. - Add alarm: tap "+" button or double tap on "Alarm" icon - Delete alarm: swipe left. - Stop alarm from the lock screen: push volume down button. Alarm Clock: Missed alarm will automatically repeat again after 10 minutes. For use as home clock: disable option "Auto-Lock" in app settings. About alarm option "Touch Device to Snooze": - Work when screen locked - Easy touch to device for activation snooze - Recommended place device on nightstand - If device in hand, snooze activated after 3 seconds - You can't set vibration with alarm

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!)

Screenshots

Alarm Clock4 screens
OLED Clock4 screens

Verdict

The call

The clearest difference is review sentiment: OLED Clock at 79% against Alarm Clock's 39%. OLED Clock also leads on in-app purchases (none vs 1). Alarm Clock's advantage is rating (4.4 vs 3.9) and ratings volume (568 vs 15). On price, update cadence, ads 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. Alarm Clock sells 1 one-off in-app purchase. OLED Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Alarm Clock holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: Alarm Clock has 568 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 39% of Alarm Clock's written reviews are positive against 79% of OLED Clock's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Alarm Clock ships an update every 3 weeks, OLED Clock every 4 weeks. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
Alarm Clock versus OLED Clock: the parameters behind the verdict, then further details
ParameterAlarm ClockOLED Clock
PriceFreeFree
Rating4.4 (568 ratings) — better3.9 (15 ratings)
Positive reviews38.9% of reviews78.6% of reviews — better
Number of ratings568 — better15
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple TV — better
Requires iOS8.0 — better12.0
Further details — not scored
Size54 MB10 MB
Age rating4+4+
DeveloperVitalii GryniukChristian Moeller

Customer experience

Alarm Clock

All ratings568 ratings
Positive83.3%
Neutral6.7%
Negative10.0%
Written reviews36 reviews
Positive38.9%
Neutral5.6%
Negative55.6%

OLED Clock

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

Bugs and requests

Alarm Clock

Reported bugs

9 issues
  • Alarm doesn't trigger next day despite being set
  • Alarm goes off inconsistently (40% failure rate reported)
  • Music doesn't play on scheduled alarms, only test alarms
  • Sleep timer starts but playlist doesn't play
  • Snooze function non-functional in premium version
Show 4 more
  • Alarm skips over scheduled times
  • iOS 13 compatibility issues with music playback
  • Pop-ups lock bottom of alarm clock interface
  • Song clips don't play as selected

Requested features

8 requests
  • Vibration option for silent alarms
  • Auto-adjusting screen brightness based on time of day
  • Light sensor for automatic brightness adjustment
  • Improved alarm sound selection variety
  • Louder volume options
Show 3 more
  • Longer alarm duration before auto-shutoff
  • Better music/playlist integration
  • Customizable fade-in speed

OLED Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Alarm Clock

One-time1
  • PREMIUM$2.99
None

OLED Clock

No in-app purchases

Questions

Is Alarm Clock free?
Alarm Clock is free to download, with in-app purchases available.
Is OLED Clock free?
OLED Clock is free to download, with no in-app purchases.
Which has better reviews, Alarm Clock or OLED Clock?
Alarm Clock is rated higher. Alarm Clock averages 4.4 out of 5 from 568 ratings, while OLED Clock averages 3.9 from 15 ratings.
Do Alarm Clock or OLED Clock have ads?
Neither Alarm Clock nor OLED Clock shows ads.
Which is updated more often, Alarm Clock or OLED Clock?
Alarm Clock ships an update every 3 weeks, and OLED Clock every 4 weeks. Most recently, Alarm Clock was updated on October 10, 2026 and OLED Clock on October 13, 2026.

Other comparisons