# Nutshell vs ChatPDF

The clearest difference is update cadence: Nutshell at every 11 days against ChatPDF's every 2 months. Nutshell also leads on iOS requirement (11.0 vs 13.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Nutshell sells 2 in-app purchases, starting at $1.99 per 7 days and ChatPDF sells 4 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Nutshell ships an update every 11 days, ChatPDF every 2 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Nutshell | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (13 ratings)](https://appshunter.io/ios/app/chatpdf-pdf-ai-and-pdf-summary/id6476518216/reviews)** |
| Number of ratings | — | **13** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 months |
| Monetization | — | Freemium |
| Size | 67 MB | 27 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SK LABS LIMITED](https://appshunter.io/developer/1651362333) | [BOGAZICI YAYINLARI ANONIM SIRKETI](https://appshunter.io/developer/1331653456) |

## What reviewers say

### Nutshell

[App page](https://appshunter.io/ios/app/nutshell-ai-summary-tool/id6449735676)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NutShell Pro | $1.99 | per 7 days |
| Nutshell Pro 1 Month | $3.99 | per month |


### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-pdf-ai-and-pdf-summary/id6476518216)

This AI chatbot transforms documents into interactive conversations. Get instant homework help, summarize articles, and generate essays. It supports multiple file types and languages, making learning and research more efficient.

**Highlights:** Document summarization, Homework assistance, Essay generation, Web page summarization, Multilingual support, Interactive document chatbot

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ai Summarizer PDF Summary | $9.99 | per 7 days |
| ChatPDF Ask Ai PDF Summary Doc | $19.99 | per month |
| ChatPDF - PDF Summary Trial | $29.99 | per 3 months |
| Ask PDF Ai PDF Assist Doc Help | $69.99 | per year |


## Frequently asked questions

### Is Nutshell free?

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

### Is ChatPDF free?

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

### Do Nutshell or ChatPDF have ads?

Neither Nutshell nor ChatPDF shows ads.

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

Nutshell ships an update every 11 days, and ChatPDF every 2 months. Most recently, Nutshell was updated on October 19, 2026 and ChatPDF on October 24, 2026.

---

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