# QRScan vs PDF Fast AI

The clearest difference is update cadence: PDF Fast AI at every 6 days against QRScan's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

QRScan ships an update every 5 months, PDF Fast AI every 6 days. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | QRScan | PDF Fast AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 6 days** |
| Size | 43 MB | 79 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Doudou Oasis Network Technology Co.,Ltd](https://appshunter.io/developer/1776078126) | [Ashore Limited](https://appshunter.io/developer/6785806448) |

## What reviewers say

### QRScan

[App page](https://appshunter.io/ios/app/qrscan-code-scanner/id6756336153)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Fast AI

[App page](https://appshunter.io/ios/app/pdf-fast-ai/id6794186519)

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

**In-app purchases:** none


## Frequently asked questions

### Is QRScan free?

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

### Is PDF Fast AI free?

PDF Fast AI is free to download, with no in-app purchases.

### Do QRScan or PDF Fast AI have ads?

Both QRScan and PDF Fast AI show ads.

### Which is updated more often, QRScan or PDF Fast AI?

QRScan ships an update every 5 months, and PDF Fast AI every 6 days. Most recently, QRScan was updated on October 2, 2026 and PDF Fast AI on October 13, 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.*