# ChatPDF vs HSFP

The clearest difference is in-app purchases: HSFP at none against ChatPDF's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ChatPDF sells 3 in-app purchases, starting at $2.99 per 7 days. HSFP asks for nothing beyond the download.

ChatPDF ships an update every 2 months, HSFP every 3 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | ChatPDF | HSFP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/chatpdf-essay-and-summary-ai/id6450712465/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Freemium | — |
| Size | 64 MB | 45 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Can TASPINAR](https://appshunter.io/developer/884490998) | [Narongdech Sukjan](https://appshunter.io/developer/1896030298) |

## What reviewers say

### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-essay-and-summary-ai/id6450712465)

Instantly extract information from PDFs, videos, and websites by asking questions. Get precise answers for homework, research, and study. Offers free daily credits and a Pro plan for unlimited access.

**Highlights:** Ask questions about PDF content, Summarize videos and websites, AI-powered precise answers, Homework and exam preparation, Free daily credits, Multilingual support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Weekly | $2.99 | per 7 days |
| Pro - 1 Month | $4.99 | per month |
| Pro - Annual | $29.99 | per year |


### HSFP

[App page](https://appshunter.io/ios/app/hsfp/id6765685166)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChatPDF free?

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

### Is HSFP free?

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

### Do ChatPDF or HSFP have ads?

Neither ChatPDF nor HSFP shows ads.

### Which is updated more often, ChatPDF or HSFP?

ChatPDF ships an update every 2 months, and HSFP every 3 months. Most recently, ChatPDF was updated on October 24, 2026 and HSFP on October 22, 2026.

---

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