# OLED Clock — Full featured animated Clock

> Animated clock app to prevent OLED screen burn-in with customizable display. (iPhone/iPad app by Christian Moeller.)

- Source: https://appshunter.io/ios/app/oled-clock/id1364541962 (this page in markdown: same URL + `.md`)
- Developer: [Christian Moeller](https://appshunter.io/developer/1364541961)
- Category: Utilities, Education
- Price: Free
- Rating: 3.90/5 from 15 App Store ratings · 28 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 10 MB
- Languages: American English, French (France), German (Germany), Hebrew, Japanese
- Released: 2018-05-07
- Data updated: 2026-08-29
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/oled-clock/id1364541962/reviews.md

## What is OLED Clock?

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!)

## Key features

- OLED burn-in prevention
- Animated clock movement
- Color cycling
- Digital and analog views
- Customizable fonts and size
- Adjustable animation speed

## Recent user reviews (10 of 28)

All indexed reviews: https://appshunter.io/ios/app/oled-clock/id1364541962/reviews.md

### 5/5 — Schlicht und gut

*2025-12-28, version 2.1.7*

Eine schöne App, die tut, was sie soll ✅ 
und vom Entwickler gepflegt wird 👍

### 5/5 — Good idea

*2025-12-20*

Good idea. Very good execution. Excellent, very responsive team.
They responded to my issue with the display very quickly. 👍👍👍👍

### 5/5 — Perfect

*2024-10-26*

Thank you for a great clock app! So many font options.  Great for the iPad at night.  No ads.  Why would anyone give less than 5 stars.  Love it!!  Thank you again!!

### 1/5 — Zeitzonen????

*2024-03-23, version 2.1.3*

Die Zeitzone lässt sich nicht ändern. Sehr schlecht!!! => App gelöscht!!! . . Die Antwort des Entwicklers ist nicht befriedigend. Als Pilot brauche ich eine UTC-Anzeige. Das lässt sich nicht einstellen. Meine Bewertung bleibt daher bestehen. Nach der zweiten Antwort des „Entwicklers“ soll ich nun die Systemzeit meines Handys auf UTC einstellen! Als „Entwickler“ sollte man wissen, daß das nicht geht. Die Antworten werden immer lächerlicher. Jetzt kommt schon dritte Antwort des „Entwicklers". Er kapiert es einfach nicht: morgen brauche ich die Lokalzeit von London UND UTC, übermorgen die Lokalzeit von New York UND UTC, ein paar Stunden später die Lokalzeit von San Francisco und UTC. Ich kann doch nicht jedesmal die Systemzeit verstellen. Es ist eben eine Primitiv-App, die nur eine Zeit anzeigen kann und niemand braucht, der unterwegs ist. Und hallo „Entwickler“: lassen Sie es einfach. Sie disqualifizieren sich mit Ihren Antworten. OMG! Jetzt ist der "Entwickler“ nach der vierten Antwort (!!!) auch noch beleidigt! Der Arme! Ich finde es befremdlich, dass jeder, der zwei Programmzeilen in der richtigen Reihenfolge aufschreiben kann, sich Entwickler nennen darf. Die App mit ihrem Farb-Blinkerblinker und der nervös herumrutschenden Anzeige ist etwas für Mädchen in der Vorpubertät. Wenn ich auf die Home-Taste drücke zeigt mir das Handy im Sperrbildschirm Datum und Uhrzeit an. Wozu also noch eine App? Dass ich eine App mit mehreren Zeitzonen erwartete, liest sich aus der Überschrift meiner Kritik ab. „Zeitzonen" ist Plural (für angehende Entwickler: Plural bedeutet Mehrzahl; kommt aus dem lateinischen). Eben das haben Sie nicht kapiert. Lesen müsste man können. Mit den Worten „lassen Sie es“ meinte ich Ihre sinnlose Antworterei. Aber wahrscheinlich ist das Wort „sinnlos“ auch schon wieder eine OMG!!! ………………………………………. ……….Jetzt schon die fünfte Antwort. Natürlich ist die UTC-Zeitangabe im Singular! Es gibt ja nur EINE (!!!) UTC-Zeitangabe!!!!!!!!!!!!!!! Dafür gibt es aber 24 Lokalzeiten! Also Plural. Es wird mir jetzt auch zu langweilig, meine wertvolle Zeit mit sinnlosen Wortgefechten zu vergeuden. Viel Spaß noch.

### 5/5 — Good app

*2024-01-13, version 2.1.3*

I love this app however I think you could put a background on it and the date and battery percentage and Wi-Fi

### 4/5 — Fix

*2023-10-10*

Add Portrait lock or landscape lock for using digital clock or analog thank you

### 4/5 — Around o'clock

*2022-11-11, version 2.1.3*

Please hold the line!
Is it a mistake or a feature, on ATV?

But it's a picking App

### 4/5 — Gelungene Nachtuhr

*2022-01-11, version 2.1.3*

Angenehme Farben, vier Flow-Modi, insgesamt gelungenes Konzept. Nur der Farbwechsel funktioniert nicht. Dennoch klare Empfehlung.

### 3/5 — Good, but…

*2021-10-20*

I was excited about the color cycling, but it seems it only cycles from red to Green - then stays on green. 
Maybe it’s my phone? (iPhone 8 plus)

**Developer response:** Color cycling is slow! It takes exactly 60 minutes to complete a full cycle of all colors from red back to red. Just be patient.

### 2/5 — Leider nicht perfekt

*2021-03-04, version 2.1.2*

Eigentlich eine tolle App, ich war aber nur so lange begeistert, bis ich gemerkt habe, dass WhatsApp, E-Mail‘s und co nicht mehr auf meine Apple Watch gepusht werden. ☹️ Dann kann ich diese App leider nicht gebrauchen, schade.

## Frequently asked questions about OLED Clock

### What does this app do?

This app displays a clock that is specifically designed to prevent OLED screen burn-in. It achieves this by constantly moving the clock around the screen and smoothly changing its colors over time, ensuring that individual pixels are not constantly illuminated.

### How does it prevent OLED burn-in?

The app prevents burn-in by ensuring the clock display is never static. It moves across the screen, utilizing different pixels over time, and also cycles through a spectrum of colors. This even distribution of pixel usage is key to avoiding permanent image retention on OLED displays.

### What are the customization options?

You can choose between digital and analog clock views, select from a variety of fonts, adjust the clock's size using pinch gestures, and control the animation speed. You can also toggle seconds, blinking separators, and the 24-hour display.

### Is this app compatible with my device?

The app works on all iOS devices, including iPhone, iPod Touch, and iPad, running iOS 9.3 and above. It is particularly optimized for OLED displays like those found on the iPhone X.

### What is the cost of this app?

The application is available for free. There are no in-app purchases or advertisements mentioned, indicating it is a completely free utility.

## Version history (last 5 releases)

### 2.1.7 — 2025-12-27

Another bug fixed: Tab bar now correctly appears on tap in iOS 16 and earlier versions

### 2.1.6 — 2025-12-26

- Minimum requirement is now iOS 12
- Bug fixed: White tab bar issue resolved.
- Bug fixed: Segmented control appearance in settings fixed.

### 2.1.5 — 2025-12-19

bug fix: TabBar now hides under iPadOS 18 and newer correctly

### 2.1.4 — 2025-12-16

Just a maintenance release, no major changes

### 2.1.3 — 2021-11-03

- In response to multiple customer requests, we have accelerated the color cycling. A full cycle now only takes 30 minutes instead of 60 minutes
- The rate of change in color cycling is no longer linear, but follows a sine curve over the color value (hue). As a result, the colors in the color cycling now appear more evenly distributed over time

## Apps similar to OLED Clock

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| --- | --- | --- | --- |
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## More apps by Christian Moeller

- [APSI Bench](https://appshunter.io/ios/app/apsi-bench/id1536601621)
- [Simple BLE Scanner](https://appshunter.io/ios/app/simple-ble-scanner/id1663446245)

All apps by Christian Moeller: https://appshunter.io/developer/1364541961

## Related topics

[oled clock](https://appshunter.io/ios/topics/oled-clock) · [oled](https://appshunter.io/ios/topics/oled) · [analog digital oled clock pro](https://appshunter.io/ios/topics/analog-digital-oled-clock-pro) · [oledx](https://appshunter.io/ios/topics/oledx)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*