# PDF AI vs RecallNest

The clearest difference is in-app purchases: RecallNest at none against PDF AI's 5. RecallNest also leads on update cadence (weekly vs every 3 weeks). PDF AI's advantage is iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. PDF AI sells 5 in-app purchases, starting at $7.99 per 7 days. RecallNest asks for nothing beyond the download.

PDF AI ships an update every 3 weeks, RecallNest weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PDF AI | RecallNest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (163 ratings)](https://appshunter.io/ios/app/pdf-ai-editor-scanner-chat/id6581489325/reviews)** | — |
| Number of ratings | **163** | — |
| Positive reviews | 88.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 169 MB | 16 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yang Yang](https://appshunter.io/developer/1756128958) | [SHENG GAO](https://appshunter.io/developer/1736367675) |

## What reviewers say

### PDF AI

[App page](https://appshunter.io/ios/app/pdf-ai-editor-scanner-chat/id6581489325)

This application offers a comprehensive suite of AI-powered tools for managing PDF documents. Users can edit text and images, generate AI summaries, convert files to various formats, and securely sign documents. It prioritizes speed and privacy with local processing and encryption.

**Highlights:** Edit PDF text and images, AI-powered summaries and highlights, Annotate and collaborate on documents, Fill and e-sign forms, Convert PDFs to Word, Excel, PPT, Images, TXT, Secure offline scanning and organization

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP | $7.99 | per 7 days |
| Weekly VIP | $9.99 | per 7 days |
| Weekly VIP | $9.99 | per 7 days |
| Monthly VIP | $14.99 | per month |
| Yearly VIP | $59.99 | per year |


### RecallNest

[App page](https://appshunter.io/ios/app/recallnest/id6791022949)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF AI free?

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

### Is RecallNest free?

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

### Do PDF AI or RecallNest have ads?

Both PDF AI and RecallNest show ads.

### Which is updated more often, PDF AI or RecallNest?

PDF AI ships an update every 3 weeks, and RecallNest weekly. Most recently, PDF AI was updated on October 30, 2026 and RecallNest on October 25, 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.*