# QR Code Generator vs Second Brain

The clearest difference is in-app purchases: QR Code Generator at none against Second Brain's 3. QR Code Generator also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Second Brain sells 3 in-app purchases, starting at $3.99 per 7 days. QR Code Generator asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | QR Code Generator | Second Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qr-code-generator-qr-scanner/id6747388887/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 6 MB | 22 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roya Waqas](https://appshunter.io/developer/1659688448) | [Softrix](https://appshunter.io/developer/6802291723) |

## What reviewers say

### QR Code Generator

[App page](https://appshunter.io/ios/app/qr-code-generator-qr-scanner/id6747388887)

Instantly scan and generate custom QR codes for various purposes, from Wi-Fi passwords to business cards. Organize, share, and export your creations with a clean and powerful interface.

**Highlights:** Instant QR code and barcode scanning, Automatic code detection, Import codes from photos, Generate custom QR codes, Export codes in PNG/SVG, Organize scans and creations, Share codes instantly

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

**In-app purchases:** none


### Second Brain

[App page](https://appshunter.io/ios/app/second-brain-ai-voice-notes/id6804204914)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is QR Code Generator free?

QR Code Generator is free to download, with no in-app purchases.

### Is Second Brain free?

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

### Do QR Code Generator or Second Brain have ads?

Neither QR Code Generator nor Second Brain shows ads.

### Which is updated more often, QR Code Generator or Second Brain?

QR Code Generator ships an update every 3 weeks, and Second Brain every 3 weeks. Most recently, QR Code Generator was updated on October 24, 2026 and Second Brain on October 24, 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.*