# EchoPDF Ai vs PDF Converter

The clearest difference is in-app purchases: EchoPDF Ai at none against PDF Converter's 3. PDF Converter's advantage is update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Converter sells 3 in-app purchases, starting at $9.99 per 7 days. EchoPDF Ai asks for nothing beyond the download.

EchoPDF Ai ships an update monthly, PDF Converter every 5 days. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | EchoPDF Ai | PDF Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pdf-converter-docs-scanner/id6773582437/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 644 MB | 58 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [UNLIMITED BURST TECHNOLOGY CO., LIMITED](https://appshunter.io/developer/1842058922) | [Komal Gangani](https://appshunter.io/developer/1854018266) |

## What reviewers say

### EchoPDF Ai

[App page](https://appshunter.io/ios/app/echopdf-ai/id6761255593)

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

**In-app purchases:** none


### PDF Converter

[App page](https://appshunter.io/ios/app/pdf-converter-docs-scanner/id6773582437)

This app transforms your mobile device into a powerful PDF scanner and editor. Convert various file types to and from PDF, perform OCR for searchable text, and secure your documents with passwords and encryption. It offers a comprehensive suite of tools for managing, signing, and annotating PDFs without needing a desktop.

**Highlights:** Mobile document scanning with auto edge detection, On-device OCR for searchable text, Convert to/from PDF and multiple file formats, Merge, split, reorder, and compress PDFs, Sign, fill forms, and annotate documents, Password protection and redaction, iCloud sync and share sheet integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Weekly | $9.99 | per 7 days |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is EchoPDF Ai free?

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

### Is PDF Converter free?

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

### Do EchoPDF Ai or PDF Converter have ads?

Neither EchoPDF Ai nor PDF Converter shows ads.

### Which is updated more often, EchoPDF Ai or PDF Converter?

EchoPDF Ai ships an update monthly, and PDF Converter every 5 days. Most recently, EchoPDF Ai was updated on September 21, 2026 and PDF Converter on September 11, 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.*