# AI PDF Editor vs HTML Reader Offline

The clearest difference is update cadence: AI PDF Editor at every 5 days against HTML Reader Offline's every 6 weeks. AI PDF Editor also leads on ratings volume (3 vs 1). HTML Reader Offline's advantage is device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. AI PDF Editor sells 3 in-app purchases, starting at $3.99 per month and HTML Reader Offline sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for AI PDF Editor against 5.0 for HTML Reader Offline. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

AI PDF Editor ships an update every 5 days, HTML Reader Offline every 6 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | AI PDF Editor | HTML Reader Offline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/ai-pdf-editor-sign-highlight/id6761747079/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/html-reader-offline/id6778323048/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 137 MB | 2 MB |
| Requires iOS | 17 | **16** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [THK Global Limited](https://appshunter.io/developer/1116488270) | [发达 陈](https://appshunter.io/developer/6776674425) |

## What reviewers say

### AI PDF Editor

[App page](https://appshunter.io/ios/app/ai-pdf-editor-sign-highlight/id6761747079)

Edit, sign, convert, and manage PDF documents directly on your phone. Streamline your workflow by making changes to text and images, adding signatures, and converting files without needing a desktop or multiple applications.

**Highlights:** Edit text and images in PDFs, Convert photos/scans to PDF, Add signatures and annotations, Fill out forms, Connect to cloud storage, Organize and manage documents

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Package | $3.99 | per month |
| Monthly Promotion Package | $3.99 | per month |
| Yearly Package | $49.99 | per year |


### HTML Reader Offline

[App page](https://appshunter.io/ios/app/html-reader-offline/id6778323048)

This app allows users to read local HTML and ZIP files offline. It's designed for developers, students, and learners to access documentation and course materials on their devices without an internet connection. Features include smart ZIP support, a built-in reader, table of contents, bookmarks, and reading progress tracking.

**Highlights:** Offline HTML and ZIP file reading, Smart ZIP support with index.html detection, Built-in WKWebView reader, Auto-generated table of contents, Bookmarks and reading progress saving, Light, Dark, and Auto themes, Long-image export

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Cup of Coffee | $0.99 | one-time |


## Frequently asked questions

### Is AI PDF Editor free?

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

### Is HTML Reader Offline free?

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

### Which has better reviews, AI PDF Editor or HTML Reader Offline?

AI PDF Editor and HTML Reader Offline are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do AI PDF Editor or HTML Reader Offline have ads?

Neither AI PDF Editor nor HTML Reader Offline shows ads.

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

AI PDF Editor ships an update every 5 days, and HTML Reader Offline every 6 weeks. Most recently, AI PDF Editor was updated on October 9, 2026 and HTML Reader Offline on October 6, 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.*