# Interfacing EPC Mobile vs PDF AI

The clearest difference is in-app purchases: Interfacing EPC Mobile at none against PDF AI's 5. Interfacing EPC Mobile also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, update cadence 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. Interfacing EPC Mobile asks for nothing beyond the download.

Interfacing EPC Mobile ships an update every 2 weeks, PDF AI every 3 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Interfacing EPC Mobile | PDF AI |
| --- | --- | --- |
| 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 | — | 88.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 63 MB | 169 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Interfacing Technologies Corporation](https://appshunter.io/developer/1463217065) | [Yang Yang](https://appshunter.io/developer/1756128958) |

## What reviewers say

### Interfacing EPC Mobile

[App page](https://appshunter.io/ios/app/interfacing-epc-mobile/id1463217066)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Interfacing EPC Mobile free?

Interfacing EPC Mobile is free to download, with no in-app purchases.

### Is PDF AI free?

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

### Do Interfacing EPC Mobile or PDF AI have ads?

PDF AI shows ads; Interfacing EPC Mobile does not.

### Which is updated more often, Interfacing EPC Mobile or PDF AI?

Interfacing EPC Mobile ships an update every 2 weeks, and PDF AI every 3 weeks. Most recently, Interfacing EPC Mobile was updated on October 17, 2026 and PDF AI on October 16, 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.*