# Pixel Clock vs Reading Tool

The clearest difference is iOS requirement: Pixel Clock at 15.0 against Reading Tool's 26.0. 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.

Pixel Clock ships an update every 6 days, Reading Tool every 5 days. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Pixel Clock | Reading Tool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 5 days** |
| Size | 79 MB | 4 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YIMING SHI](https://appshunter.io/developer/1778404172) | [CreationAct (Shanghai) Technology Co., Ltd.](https://appshunter.io/developer/1770311812) |

## What reviewers say

### Pixel Clock

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

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

**In-app purchases:** none


### Reading Tool

[App page](https://appshunter.io/ios/app/reading-tool/id6753701748)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Clock free?

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

### Is Reading Tool free?

Reading Tool is free to download, with no in-app purchases.

### Do Pixel Clock or Reading Tool have ads?

Neither Pixel Clock nor Reading Tool shows ads.

### Which is updated more often, Pixel Clock or Reading Tool?

Pixel Clock ships an update every 6 days, and Reading Tool every 5 days. Most recently, Pixel Clock was updated on October 9, 2026 and Reading Tool on October 12, 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.*