# QR Code Inspector Devtools vs HAP Studio

The clearest difference is in-app purchases: HAP Studio at none against QR Code Inspector Devtools's 1. HAP Studio also leads on ads (none vs shown). QR Code Inspector Devtools's advantage is update cadence (daily vs weekly) and iOS requirement (17.6 vs 26.0). On price, monetization model and device support there is nothing between them.

Both are free to download. QR Code Inspector Devtools sells 1 one-off in-app purchase. HAP Studio asks for nothing beyond the download.

QR Code Inspector Devtools ships an update daily, HAP Studio weekly. Both last shipped on October 28, 2026.

## The numbers

| Metric | QR Code Inspector Devtools | 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 22 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Masahiro Sato](https://appshunter.io/developer/1818044954) | [YUI ATARASHI](https://appshunter.io/developer/1896682176) |

## What reviewers say

### QR Code Inspector Devtools

[App page](https://appshunter.io/ios/app/qr-code-inspector-devtools/id6756510318)

A straightforward tool for developers to quickly view the decoded content of QR codes. Offers a clean interface for inspecting QR code data, with an option to remove ads via a one-time purchase.

**Highlights:** Inspect QR code content, View decoded data, Simple interface, Ad removal purchase

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### 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 QR Code Inspector Devtools free?

QR Code Inspector Devtools is free to download, with in-app purchases available.

### Is HAP Studio free?

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

### Do QR Code Inspector Devtools or HAP Studio have ads?

QR Code Inspector Devtools shows ads; HAP Studio does not.

### Which is updated more often, QR Code Inspector Devtools or HAP Studio?

QR Code Inspector Devtools ships an update daily, and HAP Studio weekly. Most recently, QR Code Inspector Devtools was updated on October 28, 2026 and HAP Studio 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.*