# Modify PDF Pro vs ScanFlash

The clearest difference is ads: Modify PDF Pro at none against ScanFlash's shown. ScanFlash's advantage is update cadence (monthly vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Modify PDF Pro sells 3 in-app purchases, starting at $3.99 per month and ScanFlash sells 6 in-app purchases, starting at $1.49 per 7 days. Whichever you choose, the download price is not the number that matters.

Modify PDF Pro ships an update every 6 months, ScanFlash monthly. The most recent releases landed on October 8, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Modify PDF Pro | ScanFlash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Monthly** |
| Size | 75 MB | 128 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jose Antonio Salinas Garcia](https://appshunter.io/developer/1803226958) | [Ian Eduardo Vega Ortega](https://appshunter.io/developer/1881728193) |

## What reviewers say

### Modify PDF Pro

[App page](https://appshunter.io/ios/app/modify-pdf-pro/id6760251517)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart OCR Mensual | $3.99 | per month |
| Smart OCR Anual | $34.99 | per year |
| Cuenta premium vitalicia | $69.99 | one-time |


### ScanFlash

[App page](https://appshunter.io/ios/app/scanflash-pdf-scanner-and-ocr/id6761666885)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScanFlash Pro Weekly | $1.49 | per 7 days |
| ScanFlash Pro Weekly Offered | $1.79 | per 7 days |
| ScanFlash Pro | $4.99 | per month |
| ScanFlash Pro Monthly Offered | $5.39 | per month |
| ScanFlash Pro Annual | $34.99 | per year |
| ScanFlash Pro Annual Offered | $42.99 | per year |


## Frequently asked questions

### Is Modify PDF Pro free?

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

### Is ScanFlash free?

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

### Do Modify PDF Pro or ScanFlash have ads?

ScanFlash shows ads; Modify PDF Pro does not.

### Which is updated more often, Modify PDF Pro or ScanFlash?

Modify PDF Pro ships an update every 6 months, and ScanFlash monthly. Most recently, Modify PDF Pro was updated on October 8, 2026 and ScanFlash on September 28, 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.*