# OLED Clock vs Simple Clock

The clearest difference is rating: OLED Clock at 3.9 against Simple Clock's 1.0. OLED Clock also leads on ratings volume (15 vs 1) and iOS requirement (12.0 vs 14.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OLED Clock holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: OLED Clock has 15 ratings behind it against 1, so its average is the more settled of the two.

OLED Clock ships an update every 4 weeks, Simple Clock every 6 weeks. The most recent releases landed on October 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | OLED Clock | Simple Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (15 ratings)](https://appshunter.io/ios/app/oled-clock/id1364541962/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/simple-clock-hybrid-clock/id1548930970/reviews) |
| Number of ratings | **15** | 1 |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 10 MB | 5 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Moeller](https://appshunter.io/developer/1364541961) | [Imagination Studio LLC.](https://appshunter.io/developer/1806272197) |

## What reviewers say

### OLED Clock

[App page](https://appshunter.io/ios/app/oled-clock/id1364541962)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Simple Clock

[App page](https://appshunter.io/ios/app/simple-clock-hybrid-clock/id1548930970)

This utility app provides a customizable digital clock with adjustable colors and sizes, and an analog dial option for iPad users. It also offers accurate time synchronization via NTP servers.

**Highlights:** Customizable digital clock colors, Adjustable clock sizes, Toggle seconds display, Analog dial for iPad, NTP time synchronization, Customizable NTP servers

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OLED Clock free?

OLED Clock is free to download, with no in-app purchases.

### Is Simple Clock free?

Simple Clock is free to download, with no in-app purchases.

### Which has better reviews, OLED Clock or Simple Clock?

OLED Clock is rated higher. OLED Clock averages 3.9 out of 5 from 15 ratings, while Simple Clock averages 1.0 from 1 ratings.

### Do OLED Clock or Simple Clock have ads?

Neither OLED Clock nor Simple Clock shows ads.

### Which is updated more often, OLED Clock or Simple Clock?

OLED Clock ships an update every 4 weeks, and Simple Clock every 6 weeks. Most recently, OLED Clock was updated on October 7, 2026 and Simple Clock on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*