# PDF AI vs Scan PDF－Convert Document

The clearest difference is monetization model: PDF AI at free with in-app purchases against Scan PDF－Convert Document's subscription. PDF AI also leads on review sentiment (90% vs 76%) and update cadence (every 3 weeks vs every 6 weeks). Scan PDF－Convert Document's advantage is ads (none vs shown). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. PDF AI sells 5 in-app purchases, starting at $7.99 per 7 days and Scan PDF－Convert Document sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for PDF AI against 4.7 for Scan PDF－Convert Document. Both are backed by a comparable volume of ratings — 151 and 133 respectively. Written reviews are what separate them: 90% of PDF AI's written reviews are positive against 76% of Scan PDF－Convert Document's.

PDF AI ships an update every 3 weeks, Scan PDF－Convert Document every 6 weeks. The most recent releases landed on September 20, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | PDF AI | Scan PDF－Convert Document |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (151 ratings)](https://appshunter.io/ios/app/pdf-ai-editor-scanner-chat/id6581489325/reviews)** | [4.7 (133 ratings)](https://appshunter.io/ios/app/scan-pdfconvert-document/id6723880500/reviews) |
| Number of ratings | **151** | 133 |
| Positive reviews | **90.0% of reviews** | 76.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 169 MB | 11 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yang Yang](https://appshunter.io/developer/1756128958) | [Ravi chandran M](https://appshunter.io/developer/1756258598) |

## What reviewers say

### PDF AI

[App page](https://appshunter.io/ios/app/pdf-ai-editor-scanner-chat/id6581489325)

This application offers a comprehensive suite of AI-powered tools for managing PDF documents. Users can edit text and images, generate AI summaries, convert files to various formats, and securely sign documents. It prioritizes speed and privacy with local processing and encryption.

**Highlights:** Edit PDF text and images, AI-powered summaries and highlights, Annotate and collaborate on documents, Fill and e-sign forms, Convert PDFs to Word, Excel, PPT, Images, TXT, Secure offline scanning and organization

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP | $7.99 | per 7 days |
| Weekly VIP | $9.99 | per 7 days |
| Weekly VIP | $9.99 | per 7 days |
| Monthly VIP | $14.99 | per month |
| Yearly VIP | $59.99 | per year |


### Scan PDF－Convert Document

[App page](https://appshunter.io/ios/app/scan-pdfconvert-document/id6723880500)

Transform your phone into a powerful document scanner. Effortlessly scan, merge, and organize documents into high-quality PDFs. Convert images to PDFs and share them easily.

**Highlights:** Scan unlimited documents, Merge multiple images into one document, Convert pictures to PDFs, Create PDFs from scanned documents, Organize documents with folders, Share scanned documents via email, Save to cloud storage

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $9.99 | per month |
| Yearly Plan | $29.99 | per year |
| Lifetime Plan | $29.99 | one-time |


## Frequently asked questions

### Is PDF AI free?

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

### Is Scan PDF－Convert Document free?

Scan PDF－Convert Document is free to download, with in-app purchases available.

### Which has better reviews, PDF AI or Scan PDF－Convert Document?

PDF AI is rated higher. PDF AI averages 4.8 out of 5 from 151 ratings, while Scan PDF－Convert Document averages 4.7 from 133 ratings.

### Do PDF AI or Scan PDF－Convert Document have ads?

PDF AI shows ads; Scan PDF－Convert Document does not.

### Which is updated more often, PDF AI or Scan PDF－Convert Document?

PDF AI ships an update every 3 weeks, and Scan PDF－Convert Document every 6 weeks. Most recently, PDF AI was updated on September 20, 2026 and Scan PDF－Convert Document on September 13, 2026.

---

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