# PDF Scanner Pro vs Soja TA

The clearest difference is update cadence: Soja TA at every 5 days against PDF Scanner Pro's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PDF Scanner Pro ships an update every 2 weeks, Soja TA every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PDF Scanner Pro | Soja TA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (23 ratings)](https://appshunter.io/ios/app/pdf-scanner-pro-sign-pdf/id6448490167/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 76 MB | 183 MB |
| Requires iOS | **14.0** | 15.5.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [ZHONGZHI YOLO HK LIMITED](https://appshunter.io/developer/1680837349) | [IDENTIGATE INTEGRATED SOLUTIONS LIMITED](https://appshunter.io/developer/1630946494) |

## What reviewers say

### PDF Scanner Pro

[App page](https://appshunter.io/ios/app/pdf-scanner-pro-sign-pdf/id6448490167)

Transform your mobile device into a portable scanner and powerful PDF converter. Easily digitize documents, photos, and IDs, with features for editing, signing, and secure local storage. Convert various file formats to PDF in seconds.

**Highlights:** Portable scanner app, OCR text recognition, Convert photo to PDF, Sign and stamp documents, Built-in PDF editor, Secure local data storage

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

**In-app purchases:** none


### Soja TA

[App page](https://appshunter.io/ios/app/soja-ta/id6758090905)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Scanner Pro free?

PDF Scanner Pro is free to download, with no in-app purchases.

### Is Soja TA free?

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

### Do PDF Scanner Pro or Soja TA have ads?

Neither PDF Scanner Pro nor Soja TA shows ads.

### Which is updated more often, PDF Scanner Pro or Soja TA?

PDF Scanner Pro ships an update every 2 weeks, and Soja TA every 5 days. Most recently, PDF Scanner Pro was updated on November 3, 2026 and Soja TA on October 31, 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.*