# ChatPDF vs Eyeline Capture

The clearest difference is in-app purchases: Eyeline Capture at none against ChatPDF's 2. Eyeline Capture also leads on ads (none vs shown) and iOS requirement (16.6 vs 18.0). ChatPDF's advantage is update cadence (every 2 months vs every 8 months). On price and device support there is nothing between them.

Both are free to download. ChatPDF sells 2 in-app purchases, starting at $2.99 per 7 days. Eyeline Capture asks for nothing beyond the download.

ChatPDF ships an update every 2 months, Eyeline Capture every 8 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ChatPDF | Eyeline Capture |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/chatpdf-summarize-and-ask-pdf/id6502504985/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 51 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Tiny Leo Co., Ltd](https://appshunter.io/developer/1660777736) | [Eyeline Tech LLC](https://appshunter.io/developer/1792699085) |

## What reviewers say

### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-summarize-and-ask-pdf/id6502504985)

This AI-powered chatbot helps you interact with PDF documents by providing instant summaries, answering detailed questions, and highlighting key information. It streamlines document analysis for students, professionals, and researchers, saving time and enhancing understanding.

**Highlights:** Upload and chat with PDFs, Instant document summaries, Detailed Q&A on content, Keyword search and highlighting, Multi-language support, User-friendly interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Trial Premium | $2.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


### Eyeline Capture

[App page](https://appshunter.io/ios/app/eyeline-capture/id6741040693)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChatPDF free?

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

### Is Eyeline Capture free?

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

### Do ChatPDF or Eyeline Capture have ads?

ChatPDF shows ads; Eyeline Capture does not.

### Which is updated more often, ChatPDF or Eyeline Capture?

ChatPDF ships an update every 2 months, and Eyeline Capture every 8 months. Most recently, ChatPDF was updated on October 27, 2026 and Eyeline Capture on October 28, 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.*