# PDF Assistant：PDF Scanner App vs Scanner PDF

The clearest difference is in-app purchases: PDF Assistant：PDF Scanner App at none against Scanner PDF's 2. Scanner PDF's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Scanner PDF sells 2 in-app purchases, starting at $4.99 per 7 days. PDF Assistant：PDF Scanner App asks for nothing beyond the download.

PDF Assistant：PDF Scanner App ships an update every 5 months, Scanner PDF every 3 weeks. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PDF Assistant：PDF Scanner App | Scanner PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 3 MB | 6 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [雪娟 柳](https://appshunter.io/developer/1678459771) | [LEADVISION MEDIA MANAGEMENT LIMITED](https://appshunter.io/developer/1749906380) |

## What reviewers say

### PDF Assistant：PDF Scanner App

[App page](https://appshunter.io/ios/app/pdf-assistantpdf-scanner-app/id6756697919)

**Features:** macOS Compatibility

**In-app purchases:** none


### Scanner PDF

[App page](https://appshunter.io/ios/app/scanner-pdf-pdf-scanner-app/id6756779237)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Plan | $4.99 | per 7 days |
| Yearly Pro Plan | $39.99 | per year |


## Frequently asked questions

### Is PDF Assistant：PDF Scanner App free?

PDF Assistant：PDF Scanner App is free to download, with no in-app purchases.

### Is Scanner PDF free?

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

### Do PDF Assistant：PDF Scanner App or Scanner PDF have ads?

Neither PDF Assistant：PDF Scanner App nor Scanner PDF shows ads.

### Which is updated more often, PDF Assistant：PDF Scanner App or Scanner PDF?

PDF Assistant：PDF Scanner App ships an update every 5 months, and Scanner PDF every 3 weeks. Most recently, PDF Assistant：PDF Scanner App was updated on September 16, 2026 and Scanner PDF on September 18, 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.*