# OLED Clock vs BillProof

The clearest difference is in-app purchases: OLED Clock at none against BillProof's 1. OLED Clock also leads on device support (4 vs 2) and iOS requirement (12.0 vs 17.0). BillProof's advantage is update cadence (every 10 days vs every 4 weeks). On price and ads there is nothing between them.

Both are free to download. BillProof sells 1 one-off in-app purchase. OLED Clock asks for nothing beyond the download.

OLED Clock ships an update every 4 weeks, BillProof every 10 days. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | OLED Clock | BillProof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (15 ratings)](https://appshunter.io/ios/app/oled-clock/id1364541962/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 10 days** |
| Monetization | Free | — |
| Size | 10 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Moeller](https://appshunter.io/developer/1364541961) | [Audio Immersia](https://appshunter.io/developer/6808683543) |

## 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


### BillProof

[App page](https://appshunter.io/ios/app/billproof-warranty-tracker/id6787513214)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $6.99 | one-time |


## Frequently asked questions

### Is OLED Clock free?

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

### Is BillProof free?

BillProof is free to download, with in-app purchases available.

### Do OLED Clock or BillProof have ads?

Neither OLED Clock nor BillProof shows ads.

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

OLED Clock ships an update every 4 weeks, and BillProof every 10 days. Most recently, OLED Clock was updated on October 22, 2026 and BillProof on October 28, 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.*