Comparison

FaceClock Calendar 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

FaceClock Calendar

This app provides a beautiful analogue clock with integrated calendar functionality. It offers customizable backgrounds, spoken time announcements, and alarm features. Users can personalize the clock's appearance and receive automatic time updates.

Highlights
  • Analogue clock with calendar
  • Customizable background image
  • Spoken time announcements
  • Alarm functionality
  • Adjustable brightness
  • Show/hide second hand
Features
Read full description

FaceClock Calendar brings your day into focus: an analog clock, today’s weather, a mini month calendar, and your events — all in one place. Unlock premium Today-tab features with a single purchase.

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

FaceClock Calendar4 screens
OLED Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: OLED Clock at none against FaceClock Calendar's 2. OLED Clock also leads on review sentiment (79% vs 54%) and update cadence (every 4 weeks vs every 3 months). On price, rating, ratings volume and ads 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. FaceClock Calendar sells 2 one-off in-app purchases. OLED Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FaceClock Calendar holds the better App Store score, 4.1 against 3.9. Both are backed by a comparable volume of ratings — 32 and 15 respectively. Written reviews complicate that: 54% of FaceClock Calendar'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

FaceClock Calendar ships an update every 3 months, OLED Clock every 4 weeks. Both last shipped on October 7, 2026.

Scorecard6 real differences · 4 level
FaceClock Calendar versus OLED Clock: the parameters behind the verdict, then further details
ParameterFaceClock CalendarOLED Clock
PriceFreeFree
Rating4.1 (32 ratings) — better3.9 (15 ratings)
Positive reviews54.2% of reviews78.6% of reviews — better
Number of ratings32 — better15
Update frequencyEvery 3 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod, Apple TV — better
Requires iOS26.012.0 — better
Further details — not scored
Size2 MB10 MB
Age rating4+4+
DeveloperiReka SoftChristian Moeller

Customer experience

FaceClock Calendar

All ratings32 ratings
Positive75.0%
Neutral6.3%
Negative18.8%
Written reviews192 reviews
Positive54.2%
Neutral14.6%
Negative31.3%

OLED Clock

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

Bugs and requests

FaceClock Calendar

Reported bugs

2 issues
  • Clock hands not displaying properly
  • Calendar not updating correctly

Requested features

3 requests
  • Add alarm clock functionality
  • Allow setting as device wallpaper
  • Provide more color/theme options

OLED Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

FaceClock Calendar

One-time2
  • Remove Ads$0.99
  • Unlock All Features$1.99
None

OLED Clock

No in-app purchases

Questions

Is FaceClock Calendar free?
FaceClock Calendar 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, FaceClock Calendar or OLED Clock?
FaceClock Calendar is rated higher. FaceClock Calendar averages 4.1 out of 5 from 32 ratings, while OLED Clock averages 3.9 from 15 ratings.
Do FaceClock Calendar or OLED Clock have ads?
Neither FaceClock Calendar nor OLED Clock shows ads.
Which is updated more often, FaceClock Calendar or OLED Clock?
FaceClock Calendar ships an update every 3 months, and OLED Clock every 4 weeks. Most recently, FaceClock Calendar was updated on October 7, 2026 and OLED Clock on October 7, 2026.

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