# Pixel Clock vs Quad Map

The clearest difference is ads: Pixel Clock at none against Quad Map's shown. Pixel Clock also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (12.0 vs 15.8.3). On price, in-app purchases and device support there is nothing between them.

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

Pixel Clock ships an update every 5 days, Quad Map every 2 weeks. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Pixel Clock | Quad Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 58 MB | 35 MB |
| Requires iOS | **12.0** | 15.8.3 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YIMING SHI](https://appshunter.io/developer/1778404172) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Pixel Clock

[App page](https://appshunter.io/ios/app/pixel-clock-grid/id6737881546)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quad Map

[App page](https://appshunter.io/ios/app/quad-map/id6742085652)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Clock free?

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

### Is Quad Map free?

Quad Map is free to download, with no in-app purchases.

### Do Pixel Clock or Quad Map have ads?

Quad Map shows ads; Pixel Clock does not.

### Which is updated more often, Pixel Clock or Quad Map?

Pixel Clock ships an update every 5 days, and Quad Map every 2 weeks. Most recently, Pixel Clock was updated on September 23, 2026 and Quad Map on September 17, 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.*