# PDF Reader vs Quill

The clearest difference is in-app purchases: Quill at none against PDF Reader's 3. Quill also leads on ads (none vs shown) and update cadence (every 9 days vs monthly). PDF Reader's advantage is device support (3 vs 1). On price, rating, ratings volume and iOS requirement there is nothing between them.

Both are free to download. PDF Reader sells 3 in-app purchases, starting at $2.99 per month. Quill asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PDF Reader against 5.0 for Quill. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

PDF Reader ships an update monthly, Quill every 9 days. The most recent releases landed on October 15, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | PDF Reader | Quill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-reader-magicpdf/id6743257879/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/quill-ai-book-reader/id6762075206/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 8 MB | 20 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Logical Magic Inc](https://appshunter.io/developer/1703399815) | [思涵 岳](https://appshunter.io/developer/1885417868) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-magicpdf/id6743257879)

This app helps you track your reading progress for PDF documents. It allows you to sync your PDFs and reading status across multiple devices for a seamless experience. Customize your reading environment for optimal comfort.

**Highlights:** Track reading progress, Sync PDFs and progress across devices, Configurable reading experience, Document reader functionality

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $24.99 | per year |
| Lifetime Pro | $49.99 | one-time |


### Quill

[App page](https://appshunter.io/ios/app/quill-ai-book-reader/id6762075206)

This application enhances your reading experience by providing AI-powered definitions, translations, and contextual explanations for any word or passage within your imported EPUB and PDF books. It offers instant insights to deepen comprehension.

**Highlights:** AI-powered explanations, Instant definitions, Contextual understanding, Import EPUB and PDF, Word and passage lookup

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader free?

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

### Is Quill free?

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

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

PDF Reader and Quill are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do PDF Reader or Quill have ads?

PDF Reader shows ads; Quill does not.

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

PDF Reader ships an update monthly, and Quill every 9 days. Most recently, PDF Reader was updated on October 15, 2026 and Quill on October 23, 2026.

---

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