# QuantumShelf vs QR Analyzer

The clearest difference is update cadence: QuantumShelf at weekly against QR Analyzer's every 3 weeks. QR Analyzer's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. QuantumShelf sells 4 in-app purchases, starting at $4.99 per month and QR Analyzer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

QuantumShelf ships an update weekly, QR Analyzer every 3 weeks. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | QuantumShelf | QR Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 45 MB | 25 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zack Halsey](https://appshunter.io/developer/1863290419) | [akira ohmachi](https://appshunter.io/developer/1338624340) |

## What reviewers say

### QuantumShelf

[App page](https://appshunter.io/ios/app/quantumshelf-home-inventory/id6756856769)

**Features:** Family Sharing, Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Family Monthly | $7.99 | per month |
| Pro Annual | $49.99 | per year |
| Family Annual | $79.99 | per year |


### QR Analyzer

[App page](https://appshunter.io/ios/app/qr-analyzer/id6758965675)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is QuantumShelf free?

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

### Is QR Analyzer free?

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

### Do QuantumShelf or QR Analyzer have ads?

Neither QuantumShelf nor QR Analyzer shows ads.

### Which is updated more often, QuantumShelf or QR Analyzer?

QuantumShelf ships an update weekly, and QR Analyzer every 3 weeks. Most recently, QuantumShelf was updated on October 25, 2026 and QR Analyzer on October 20, 2026.

---

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