# PDF Reader vs One Workbook

The clearest difference is review sentiment: PDF Reader at 81% against One Workbook's 13%. PDF Reader also leads on rating (4.5 vs 1.6) and update cadence (every 2 months vs every 12 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. PDF Reader sells 10 in-app purchases, starting at $2.99 per month and One Workbook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PDF Reader holds the better App Store score, 4.5 against 1.6. That said, the two scores are not equally well evidenced: PDF Reader has 3.5K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 81% of PDF Reader's written reviews are positive against 13% of One Workbook's.

PDF Reader ships an update every 2 months, One Workbook every 12 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PDF Reader | One Workbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (3.5K ratings)](https://appshunter.io/ios/app/pdf-reader-editor-and-viewer/id368377690/reviews)** | [1.6 (10 ratings)](https://appshunter.io/ios/app/one-workbook/id1045137274/reviews) |
| Number of ratings | **3.5K** | 10 |
| Positive reviews | **80.9% of reviews** | 12.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 12 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 190 MB | 84 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kdan Mobile Software LTD](https://appshunter.io/developer/318936474) | [Maochen Wang](https://appshunter.io/developer/912533515) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-editor-and-viewer/id368377690)

Edit, convert, and manage PDF documents on your mobile device. This app allows you to directly edit text, scan documents, fill out forms, and secure your files with passwords and watermarks. It also supports OCR to extract text from scans and convert PDFs to various formats.

**Highlights:** Edit PDF text directly, Convert PDF to Word, Excel, PPT, images, OCR for text extraction from scans, Fill and sign PDF forms, Secure PDFs with passwords and watermarks, Annotate PDFs with highlights and notes, Merge and split PDF files

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KDAN Cloud | $2.99 | per month |
| Deluxe Business Pack | $5.99 | per month |
| Creativity 365 | $9.99 | per month |
| Document 365 (Month) | $9.99 | per month |
| Deluxe PDF Pack for iPhone | $12.99 | per 3 months |
| Creativity 365 - 3 Months | $19.99 | per 3 months |
| Document 365 (Quarter) | $19.99 | per 3 months |
| Deluxe PDF Pack for iPhone | $39.99 | per year |
| Document 365 | $59.99 | per year |
| Upgrade to Premium | $2.99 | one-time |

**What reviewers like**

- 👍 Good app
- 🚀 Fast and efficient
- 📚 Useful for reading PDFs
- 🔒 Secure file storage
- 💡 Helpful features like highlighting and annotation

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔐 Locked files behind paywall
- 💰 Expensive subscription
- 📢 Intrusive ads
- 🤯 Confusing and unintuitive UI

**Reported bugs**

- Unable to open or access saved files
- Syncing and backup issues
- Compatibility problems with newer iOS versions

**Requested features**

- Improved file management and organization
- Better integration with cloud storage services
- More customization options
- Enhanced accessibility features


### One Workbook

[App page](https://appshunter.io/ios/app/one-workbook/id1045137274)

This app provides a digital notebook for organizing notes, journals, sketches, and coloring pages. It offers customizable templates for various creative uses, allowing users to write, draw, and import photos. Keep all your creative moments and notes together in one flexible digital space.

**Highlights:** Create notebooks from built-in templates, Customize notebook covers with titles, Write and draw directly on pages, Import photos onto pages, Save and access notebooks anytime, Supports multiple brush sizes and colors

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all colors | $0.99 | one-time |


## Frequently asked questions

### Is PDF Reader free?

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

### Is One Workbook free?

One Workbook is free to download, with in-app purchases available.

### Which has better reviews, PDF Reader or One Workbook?

PDF Reader is rated higher. PDF Reader averages 4.5 out of 5 from 3.5K ratings, while One Workbook averages 1.6 from 10 ratings.

### Do PDF Reader or One Workbook have ads?

Neither PDF Reader nor One Workbook shows ads.

### Which is updated more often, PDF Reader or One Workbook?

PDF Reader ships an update every 2 months, and One Workbook every 12 months. Most recently, PDF Reader was updated on October 14, 2026 and One Workbook on October 8, 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.*