# Engineer Pro Toolkit vs Combine PDF

The clearest difference is ads: Engineer Pro Toolkit at none against Combine PDF's shown. Engineer Pro Toolkit also leads on iOS requirement (13.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Engineer Pro Toolkit sells 1 one-off in-app purchase and Combine PDF sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Engineer Pro Toolkit | Combine PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 weeks |
| Size | 74 MB | 17 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shital Gorasiya](https://appshunter.io/developer/1737199158) | [Donda Arvindbhai](https://appshunter.io/developer/6802325195) |

## What reviewers say

### Engineer Pro Toolkit

[App page](https://appshunter.io/ios/app/engineer-pro-toolkit/id6759440419)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $12.99 | one-time |


### Combine PDF

[App page](https://appshunter.io/ios/app/combine-pdf-merge-pdf/id6779682886)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Lifetime Premium Access | $19.99 | one-time |


## Frequently asked questions

### Is Engineer Pro Toolkit free?

Engineer Pro Toolkit is free to download, with in-app purchases available.

### Is Combine PDF free?

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

### Do Engineer Pro Toolkit or Combine PDF have ads?

Combine PDF shows ads; Engineer Pro Toolkit does not.

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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.*