# PDF AI vs Trustur

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

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

PDF AI ships an update every 3 weeks, Trustur every 5 days. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PDF AI | Trustur |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (151 ratings)](https://appshunter.io/ios/app/pdf-ai-editor-scanner-chat/id6581489325/reviews)** | — |
| Number of ratings | **151** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 169 MB | 75 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Yang Yang](https://appshunter.io/developer/1756128958) | [FloodGates International Corp.](https://appshunter.io/developer/1786820258) |

## 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 |


### Trustur

[App page](https://appshunter.io/ios/app/trustur/id6739744228)

**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 Trustur free?

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

### Do PDF AI or Trustur have ads?

PDF AI shows ads; Trustur does not.

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

PDF AI ships an update every 3 weeks, and Trustur every 5 days. Most recently, PDF AI was updated on September 20, 2026 and Trustur on September 10, 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.*