# CAYIN Signage Assistant vs QR Code Scanner For iPhone *

The clearest difference is in-app purchases: CAYIN Signage Assistant at none against QR Code Scanner For iPhone *'s 2. CAYIN Signage Assistant also leads on ads (none vs shown). QR Code Scanner For iPhone *'s advantage is update cadence (every 4 days vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. QR Code Scanner For iPhone * sells 2 in-app purchases, starting at $6.99 per 7 days. CAYIN Signage Assistant asks for nothing beyond the download.

CAYIN Signage Assistant ships an update every 9 months, QR Code Scanner For iPhone * every 4 days. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CAYIN Signage Assistant | QR Code Scanner For iPhone * |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/qr-code-scanner-for-iphone/id6460030498/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 44 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CAYIN鎧應科技](https://appshunter.io/developer/1537732730) | [Nguyen Duoc](https://appshunter.io/developer/1641396264) |

## What reviewers say

### CAYIN Signage Assistant

[App page](https://appshunter.io/ios/app/cayin-signage-assistant/id6443804283)

**Features:** macOS Compatibility

**In-app purchases:** none


### QR Code Scanner For iPhone *

[App page](https://appshunter.io/ios/app/qr-code-scanner-for-iphone/id6460030498)

Easily scan QR codes and barcodes with this straightforward utility. It allows you to read codes from your camera or photos, create your own codes, and manage your scan history. Perfect for quickly accessing links, Wi-Fi, or product information.

**Highlights:** Scan QR codes instantly, Read product barcodes, Generate custom QR codes, Scan from photos/gallery, Use flashlight, Zoom for distance scanning, Save scan history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $6.99 | per 7 days |
| Pro Subscription | $38.99 | per year |


## Frequently asked questions

### Is CAYIN Signage Assistant free?

CAYIN Signage Assistant is free to download, with no in-app purchases.

### Is QR Code Scanner For iPhone * free?

QR Code Scanner For iPhone * is free to download, with in-app purchases available.

### Do CAYIN Signage Assistant or QR Code Scanner For iPhone * have ads?

QR Code Scanner For iPhone * shows ads; CAYIN Signage Assistant does not.

### Which is updated more often, CAYIN Signage Assistant or QR Code Scanner For iPhone *?

CAYIN Signage Assistant ships an update every 9 months, and QR Code Scanner For iPhone * every 4 days. Most recently, CAYIN Signage Assistant was updated on September 9, 2026 and QR Code Scanner For iPhone * on September 8, 2026.

---

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