# PDF Converter & PDF Scanner vs Invincible Scanner

The clearest difference is in-app purchases: Invincible Scanner at none against PDF Converter & PDF Scanner's 3. PDF Converter & PDF Scanner's advantage is update cadence (every 8 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Converter & PDF Scanner sells 3 in-app purchases, starting at $4.99 per 7 days. Invincible Scanner asks for nothing beyond the download.

PDF Converter & PDF Scanner ships an update every 8 days, Invincible Scanner every 4 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | PDF Converter & PDF Scanner | Invincible Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (88 ratings)](https://appshunter.io/ios/app/pdf-converter-and-pdf-scanner/id6502906331/reviews)** | — |
| Number of ratings | **88** | — |
| Positive reviews | 97.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 8 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 240 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [家俊 张](https://appshunter.io/developer/1745982381) | [HONGKONG HUIG TRADING LIMITED](https://appshunter.io/developer/1749253327) |

## What reviewers say

### PDF Converter & PDF Scanner

[App page](https://appshunter.io/ios/app/pdf-converter-and-pdf-scanner/id6502906331)

This app acts as a portable PDF assistant, allowing users to scan, edit, and convert documents and photos into PDF format. It offers high-quality scanning, smart OCR for text recognition, and versatile editing tools. Convert PDFs to various formats and secure your files with encryption.

**Highlights:** High-quality scanning, Smart OCR text recognition, All-in-one PDF editing, Format conversion (Word, Excel, images), Secure file encryption, Add text, images, annotations, signatures

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 week | $4.99 | per 7 days |
| 1 month | $16.99 | per month |
| 1 year | $39.99 | per year |


### Invincible Scanner

[App page](https://appshunter.io/ios/app/invincible-scanner/id6503436860)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Converter & PDF Scanner free?

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

### Is Invincible Scanner free?

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

### Do PDF Converter & PDF Scanner or Invincible Scanner have ads?

Both PDF Converter & PDF Scanner and Invincible Scanner show ads.

### Which is updated more often, PDF Converter & PDF Scanner or Invincible Scanner?

PDF Converter & PDF Scanner ships an update every 8 days, and Invincible Scanner every 4 months. Most recently, PDF Converter & PDF Scanner was updated on October 24, 2026 and Invincible Scanner 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.*