Comparison

NiceClock Pro 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

NiceClock Pro

Transform your iOS device into a beautiful, always-on clock. Features a clean interface with a Swiss font and customizable themes. Includes a night mode for easy viewing in the dark.

Highlights
  • Always-on display
  • Customizable themes
  • Night mode
  • Helvetica New font
  • Disable auto-lock
Features
Read full description

NiceClock is one of the most beautiful clocks for your iOS device. Put your iPhone in the docking station and let NiceClock do its magic. With the function "Disable Auto-Lock" the app stays open. Enjoy the nice view of the time with the beautiful swiss font "Helvetica New". You can chose between many nice themes. Thanks to the new night mode you can use NiceClock with a dimmed screen during night.

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

NiceClock Pro4 screens
OLED Clock4 screens

Verdict

The call

The clearest difference is price: OLED Clock at Free against NiceClock Pro's $0.99. OLED Clock also leads on update cadence (every 4 weeks vs every 2 months) and iOS requirement (12.0 vs 15.5). NiceClock Pro's advantage is rating (4.6 vs 3.9). On review sentiment, 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

OLED Clock is free to download; NiceClock Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NiceClock Pro holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 28 and 15 respectively. Written reviews point the same way: 84% of NiceClock Pro's written reviews are positive against 79% of OLED Clock's.

UpkeepUpdate frequency

NiceClock Pro ships an update every 2 months, OLED Clock every 4 weeks. Both last shipped on September 20, 2026.

Scorecard4 real differences · 6 level
NiceClock Pro versus OLED Clock: the parameters behind the verdict, then further details
ParameterNiceClock ProOLED Clock
Price$0.99Free — better
Rating4.6 (28 ratings) — better3.9 (15 ratings)
Positive reviews83.7% of reviews — better78.6% of reviews
Number of ratings28 — better15
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple TV — better
Requires iOS15.512.0 — better
Further details — not scored
Size5 MB10 MB
Age rating4+4+
DeveloperNiceApps GmbHChristian Moeller

Customer experience

NiceClock Pro

All ratings28 ratings
Positive89.3%
Neutral7.1%
Negative3.6%
Written reviews98 reviews
Positive83.7%
Neutral8.2%
Negative8.2%

OLED Clock

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

In-app purchases

None

NiceClock Pro

No in-app purchases

None

OLED Clock

No in-app purchases

Questions

Is NiceClock Pro free?
NiceClock Pro costs $0.99, with no in-app purchases.
Is OLED Clock free?
OLED Clock is free to download, with no in-app purchases.
Which has better reviews, NiceClock Pro or OLED Clock?
NiceClock Pro is rated higher. NiceClock Pro averages 4.6 out of 5 from 28 ratings, while OLED Clock averages 3.9 from 15 ratings.
Do NiceClock Pro or OLED Clock have ads?
Neither NiceClock Pro nor OLED Clock shows ads.
Which is updated more often, NiceClock Pro or OLED Clock?
NiceClock Pro ships an update every 2 months, and OLED Clock every 4 weeks. Most recently, NiceClock Pro was updated on September 20, 2026 and OLED Clock on September 20, 2026.

Other comparisons