# QRat vs Luu Memory

The clearest difference is review sentiment: Luu Memory at 100% against QRat's 44%. Luu Memory also leads on in-app purchases (none vs 3) and iOS requirement (14 vs 16.4). QRat's advantage is ads (none vs shown) and update cadence (weekly vs every 4 weeks). On price and device support there is nothing between them.

Both are free to download. QRat sells 3 in-app purchases, starting at $2.99 per month. Luu Memory asks for nothing beyond the download.

QRat ships an update weekly, Luu Memory every 4 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | QRat | Luu Memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qrat-qr-code-generator/id1497158638/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 43.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Freemium | **Ad-supported** |
| Size | 18 MB | 27 MB |
| Requires iOS | 16.4 | **14** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [泰宁 陆](https://appshunter.io/developer/591708109) | [An Do](https://appshunter.io/developer/1757864882) |

## What reviewers say

### QRat

[App page](https://appshunter.io/ios/app/qrat-qr-code-generator/id1497158638)

Easily create and customize QR codes with various styles, logos, and colors. Save your preferred settings and choose from curated templates. This tool also allows you to scan QR codes from your camera or image files.

**Highlights:** Convert URLs to QR codes from Safari, Customize colors, logos, and styles, Export in PNG, JPG, and SVG formats, Remember style settings, Curated design templates, Scan QR codes from camera or files

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QRat Pro Monthly | $2.99 | per month |
| Free Trial for 7 days | Free | one-time |
| Lifetime License | $9.99 | one-time |


### Luu Memory

[App page](https://appshunter.io/ios/app/luu-memory/id6560108699)

Securely encrypt and store your private messages, ensuring they remain inaccessible to third parties. Schedule messages to be sent to the future and grant trusted individuals permission to manage delivery.

**Highlights:** Message encryption, Future message delivery, Permission-based sharing, Secure storage, Long-term message scheduling

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QRat free?

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

### Is Luu Memory free?

Luu Memory is free to download, with no in-app purchases.

### Do QRat or Luu Memory have ads?

Luu Memory shows ads; QRat does not.

### Which is updated more often, QRat or Luu Memory?

QRat ships an update weekly, and Luu Memory every 4 weeks. Most recently, QRat was updated on November 3, 2026 and Luu Memory on October 27, 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.*