# Pixel Contrast Checker vs HAP Studio

The clearest difference is ads: HAP Studio at none against Pixel Contrast Checker's shown. Pixel Contrast Checker's advantage is monetization model (ad-supported vs free with in-app purchases) and iOS requirement (18.3 vs 26.0). On price, update cadence, 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.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Pixel Contrast Checker | HAP Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hap-studio/id6777100398/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 12 MB | 22 MB |
| Requires iOS | **18.3** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [YONEMASU, K.K](https://appshunter.io/developer/1861361012) | [YUI ATARASHI](https://appshunter.io/developer/1896682176) |

## What reviewers say

### Pixel Contrast Checker

[App page](https://appshunter.io/ios/app/pixel-contrast-checker/id6756552297)

This tool helps designers and developers ensure their visual content meets accessibility standards. Analyze images or URLs to instantly check color contrast ratios against WCAG 2.1 guidelines, with features like zoom and a precision loupe for detailed examination.

**Highlights:** Analyze images and URLs, WCAG 2.1 contrast ratio checks, Instant accessibility evaluation, 300% zoom function, Precision magnifying glass, Save up to 5 images, History management

**Features:** macOS Compatibility

**In-app purchases:** none


### HAP Studio

[App page](https://appshunter.io/ios/app/hap-studio/id6777100398)

Design and learn about haptics with an intuitive visual editor or AI. Generate custom haptic feedback for apps and export in various formats. Access a library of pre-made haptics and educational content.

**Highlights:** Visual haptic editor, AI-generated haptics, Lottie JSON import, Real-time preview, Swift, AHAP, JSON export, Haptic library, Educational content

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Contrast Checker free?

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

### Is HAP Studio free?

HAP Studio is free to download, with no in-app purchases.

### Do Pixel Contrast Checker or HAP Studio have ads?

Pixel Contrast Checker shows ads; HAP Studio does not.

### Which is updated more often, Pixel Contrast Checker or HAP Studio?

Pixel Contrast Checker ships an update weekly, and HAP Studio weekly. Most recently, Pixel Contrast Checker was updated on October 11, 2026 and HAP Studio on October 8, 2026.

---

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