# SIGMO vs PDFz

The clearest difference is price: PDFz at Free against SIGMO's $1.99. PDFz also leads on update cadence (every 10 days vs every 5 weeks). SIGMO's advantage is iOS requirement (12.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

PDFz is free to download; SIGMO costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SIGMO ships an update every 5 weeks, PDFz every 10 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SIGMO | PDFz |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pdfz-pdf-scanner-and-editor/id6754037398/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | — | Ad-supported |
| Size | 25 MB | 45 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Manuel Javorik](https://appshunter.io/developer/1021365313) | [Khaled Khalifa](https://appshunter.io/developer/1495012036) |

## What reviewers say

### SIGMO

[App page](https://appshunter.io/ios/app/sigmo/id1021365314)

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

**In-app purchases:** none


### PDFz

[App page](https://appshunter.io/ios/app/pdfz-pdf-scanner-and-editor/id6754037398)

Easily scan documents, convert images to PDFs, and merge or split files. Secure your sensitive information with passwords and watermarks. Organize pages, optimize file sizes, and share securely.

**Highlights:** High-quality document scanning, Convert images to PDF, Merge and split PDFs, Password protection, Add watermarks and signatures, Organize pages, Secure sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIGMO free?

SIGMO costs $1.99, with no in-app purchases.

### Is PDFz free?

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

### Do SIGMO or PDFz have ads?

Neither SIGMO nor PDFz shows ads.

### Which is updated more often, SIGMO or PDFz?

SIGMO ships an update every 5 weeks, and PDFz every 10 days. Most recently, SIGMO was updated on November 1, 2026 and PDFz on October 30, 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.*