FaceClock Calendar vs OLED Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Analogue clock with calendar
- Customizable background image
- Spoken time announcements
- Alarm functionality
- Adjustable brightness
- Show/hide second hand
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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.
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.
- OLED burn-in prevention
- Animated clock movement
- Color cycling
- Digital and analog views
- Customizable fonts and size
- Adjustable animation speed
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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
Verdict
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
Both are free to download. FaceClock Calendar sells 2 one-off in-app purchases. OLED Clock asks for nothing beyond the download.
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.
FaceClock Calendar ships an update every 3 months, OLED Clock every 4 weeks. Both last shipped on October 7, 2026.
| Parameter | FaceClock Calendar | OLED Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (32 ratings) — better | 3.9 (15 ratings) |
| Positive reviews | 54.2% of reviews | 78.6% of reviews — better |
| Number of ratings | 32 — better | 15 |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Apple TV — better |
| Requires iOS | 26.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | iReka Soft | Christian Moeller |
Customer experience
FaceClock Calendar
OLED Clock
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
FaceClock Calendar
- Remove Ads$0.99
- Unlock All Features$1.99
OLED Clock
No in-app purchases
Questions
Is FaceClock Calendar free?
Is OLED Clock free?
Which has better reviews, FaceClock Calendar or OLED Clock?
Do FaceClock Calendar or OLED Clock have ads?
Which is updated more often, FaceClock Calendar or OLED Clock?
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