# QRCode ScanStudio vs HVAC

The clearest difference is rating: QRCode ScanStudio at 5.0 against HVAC's 3.0. HVAC's advantage is update cadence (every 11 days vs every 4 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. QRCode ScanStudio sells 3 in-app purchases, starting at $9.99 per 7 days and HVAC sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

QRCode ScanStudio holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

QRCode ScanStudio ships an update every 4 weeks, HVAC every 11 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | QRCode ScanStudio | HVAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qrcode-scanstudio-pdf-lab/id6759906764/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/hvac-nameplate-scanner/id6814725045/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 11 days** |
| Monetization | Subscription | — |
| Size | 32 MB | 58 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [阳 李](https://appshunter.io/developer/1784616893) | [APPSPHERE LIMITED](https://appshunter.io/developer/6785789248) |

## What reviewers say

### QRCode ScanStudio

[App page](https://appshunter.io/ios/app/qrcode-scanstudio-pdf-lab/id6759906764)

This app is a comprehensive workspace for managing machine-readable content. It allows users to scan, decode, generate, and organize QR codes and barcodes, and also convert documents to PDF. It offers advanced scanning features and structured data parsing for various payload types.

**Highlights:** Live camera scanning with advanced controls, Extract codes from still images, Parse structured data from payloads, Generate QR codes and barcodes, Convert documents to PDF, Searchable local library for organization

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Membership | $9.99 | per 7 days |
| VIP Membership | $39.99 | per year |
| VIP Membership | $49.99 | one-time |


### HVAC

[App page](https://appshunter.io/ios/app/hvac-nameplate-scanner/id6814725045)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Membership | $9.99 | per 7 days |
| VIP Membership | $39.99 | per year |
| VIP Membership | $59.99 | one-time |


## Frequently asked questions

### Is QRCode ScanStudio free?

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

### Is HVAC free?

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

### Which has better reviews, QRCode ScanStudio or HVAC?

QRCode ScanStudio is rated higher. QRCode ScanStudio averages 5.0 out of 5 from 1 ratings, while HVAC averages 3.0 from 2 ratings.

### Do QRCode ScanStudio or HVAC have ads?

Neither QRCode ScanStudio nor HVAC shows ads.

### Which is updated more often, QRCode ScanStudio or HVAC?

QRCode ScanStudio ships an update every 4 weeks, and HVAC every 11 days. Most recently, QRCode ScanStudio was updated on October 31, 2026 and HVAC on October 31, 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.*