# PDF AI vs PDF Reader

The clearest difference is rating: PDF AI at 4.6 against PDF Reader's 4.0. PDF AI also leads on ratings volume (24 vs 4). PDF Reader's advantage is update cadence (every 4 days vs every 6 weeks) and review sentiment (50% vs 25%). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF AI sells 6 in-app purchases, starting at $2.99 per 7 days and PDF Reader sells 1 in-app purchase, starting at $19.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF AI holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: PDF AI has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 25% of PDF AI's written reviews are positive against 50% of PDF Reader's, so the app with the better star average is not the one people write more warmly about.

PDF AI ships an update every 6 weeks, PDF Reader every 4 days. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | PDF AI | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (24 ratings)](https://appshunter.io/ios/app/pdf-ai-reader-and-translator/id6503428926/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231/reviews) |
| Number of ratings | **24** | 4 |
| Positive reviews | 25.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 77 MB | 85 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AvnTech Inc.](https://appshunter.io/developer/1478209663) | [truong nguyen xuan](https://appshunter.io/developer/552933291) |

## What reviewers say

### PDF AI

[App page](https://appshunter.io/ios/app/pdf-ai-reader-and-translator/id6503428926)

This app offers a comprehensive suite of tools for managing PDF documents. It allows users to read, scan, edit, convert, and translate PDFs using integrated AI technology. Streamline your workflow with this all-in-one PDF solution.

**Highlights:** High-quality PDF reader with bookmarking and search, Ultra PDF scanner with auto-cropping, Image to PDF converter, Edit text, images, and sign PDFs, AI-powered PDF document translator, Add annotations, highlights, and stamps

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $5.99 | per month |
| Weekly | $9.99 | per 7 days |
| Yearly | $9.99 | per year |
| Monthly | $19.99 | per month |
| Yearly | $39.99 | per year |


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231)

This app is a fast and lightweight document viewer for PDF, Word, Excel, and PowerPoint files. It offers smart file management, offline access, and easy sharing, making it ideal for students and professionals. Enjoy a seamless reading experience with features like search, bookmarks, and dark mode.

**Highlights:** All-in-one document viewer (PDF, DOCX, XLSX, PPTX, TXT), Smart file manager, Offline document access, Fast and smooth performance, Search and bookmarking, Dark mode support, Easy document sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription - 1 week | $19.99 | per 7 days |


## Frequently asked questions

### Is PDF AI free?

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

### Is PDF Reader free?

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

### Which has better reviews, PDF AI or PDF Reader?

PDF AI is rated higher. PDF AI averages 4.6 out of 5 from 24 ratings, while PDF Reader averages 4.0 from 4 ratings.

### Do PDF AI or PDF Reader have ads?

Both PDF AI and PDF Reader show ads.

### Which is updated more often, PDF AI or PDF Reader?

PDF AI ships an update every 6 weeks, and PDF Reader every 4 days. Most recently, PDF AI was updated on September 21, 2026 and PDF Reader on September 23, 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.*