# Combine PDF vs Quick Image PDF Resizer

The clearest difference is in-app purchases: Quick Image PDF Resizer at none against Combine PDF's 2. Quick Image PDF Resizer also leads on update cadence (every 2 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Combine PDF sells 2 in-app purchases, starting at $1.99 per 7 days. Quick Image PDF Resizer asks for nothing beyond the download.

Combine PDF ships an update every 6 weeks, Quick Image PDF Resizer every 2 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Combine PDF | Quick Image PDF Resizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Size | 17 MB | 24 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Donda Arvindbhai](https://appshunter.io/developer/6802325195) | [Tien Nguyen](https://appshunter.io/developer/6779272090) |

## What reviewers say

### 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 |


### Quick Image PDF Resizer

[App page](https://appshunter.io/ios/app/quick-image-pdf-resizer/id6780742651)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Combine PDF free?

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

### Is Quick Image PDF Resizer free?

Quick Image PDF Resizer is free to download, with no in-app purchases.

### Do Combine PDF or Quick Image PDF Resizer have ads?

Both Combine PDF and Quick Image PDF Resizer show ads.

### Which is updated more often, Combine PDF or Quick Image PDF Resizer?

Combine PDF ships an update every 6 weeks, and Quick Image PDF Resizer every 2 days. Most recently, Combine PDF was updated on November 3, 2026 and Quick Image PDF Resizer on October 24, 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.*