# PDF Combiner vs SICON.Toolbox

The clearest difference is in-app purchases: SICON.Toolbox at none against PDF Combiner's 7. SICON.Toolbox also leads on iOS requirement (15.0 vs 18.0). PDF Combiner's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. PDF Combiner sells 7 in-app purchases, starting at $3.99 per month. SICON.Toolbox asks for nothing beyond the download.

PDF Combiner ships an update every 2 weeks, SICON.Toolbox every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | PDF Combiner | SICON.Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (293 ratings)](https://appshunter.io/ios/app/pdf-combiner-merge-and-split/id1517993393/reviews)** | — |
| Number of ratings | **293** | — |
| Positive reviews | 77.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Freemium | — |
| Size | 20 MB | 13 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evgeniy Konev](https://appshunter.io/developer/1487847911) | [GPS Gesellschaft für Produktionssysteme GmbH](https://appshunter.io/developer/1491889296) |

## What reviewers say

### PDF Combiner

[App page](https://appshunter.io/ios/app/pdf-combiner-merge-and-split/id1517993393)

Easily manage PDF files with a user-friendly interface. Merge, split, and extract pages from documents offline. Convert images to PDF and secure your files with passwords.

**Highlights:** Merge PDF documents, Split PDF into pages, Extract specific pages, Document scanner, Set/remove PDF password, Images to PDF converter, Compress and resize images

**Features:** Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Pro Weekly | $4.99 | per 7 days |
| Monthly | $9.99 | per month |
| Pro Yearly | $29.99 | per year |
| Pro Yearly | $29.99 | per year |
| PRO Forever Special | $24.99 | one-time |
| PRO Forever | $49.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- 🚀 Efficient file splitting
- ✨ Many useful features
- 💰 Great price for Pro
- 💯 Best app of its kind

**What reviewers complain about**

- 💸 Not free, limitations
- ⚠️ Free version limited
- 🪓 Free version restrictive
- 🤔 "Forever" option unclear
- 🚫 OCR function missing

**Reported bugs**

- Password remover not working
- Saving/resolution issues

**Requested features**

- Add OCR function
- Implement cropping/resizing
- Extend PDF merge limit
- Improve free version features
- Clarify "forever" option


### SICON.Toolbox

[App page](https://appshunter.io/ios/app/sicontoolbox/id1570113276)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Combiner free?

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

### Is SICON.Toolbox free?

SICON.Toolbox is free to download, with no in-app purchases.

### Do PDF Combiner or SICON.Toolbox have ads?

Neither PDF Combiner nor SICON.Toolbox shows ads.

### Which is updated more often, PDF Combiner or SICON.Toolbox?

PDF Combiner ships an update every 2 weeks, and SICON.Toolbox every 2 months. Most recently, PDF Combiner was updated on November 3, 2026 and SICON.Toolbox on November 3, 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.*