# PDF Factory Plus vs SAMS3校園差勤管理系統

The clearest difference is in-app purchases: SAMS3校園差勤管理系統 at none against PDF Factory Plus's 1. SAMS3校園差勤管理系統 also leads on update cadence (every 2 weeks vs every 26 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Factory Plus sells 1 one-off in-app purchase. SAMS3校園差勤管理系統 asks for nothing beyond the download.

PDF Factory Plus ships an update every 26 months, SAMS3校園差勤管理系統 every 2 weeks. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | PDF Factory Plus | SAMS3校園差勤管理系統 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10 ratings)](https://appshunter.io/ios/app/pdf-factory-plus/id1663406658/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 35 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [路 张](https://appshunter.io/developer/562716999) | [Chien Chung Tu](https://appshunter.io/developer/1781183934) |

## What reviewers say

### PDF Factory Plus

[App page](https://appshunter.io/ios/app/pdf-factory-plus/id1663406658)

This app offers a comprehensive suite of local PDF processing tools, ensuring your files remain secure and private. It provides intuitive features for editing, converting, merging, and protecting PDF documents without requiring an internet connection or account creation.

**Highlights:** Local PDF processing for enhanced security, Password protection and decryption, Page deletion and extraction, Merge multiple PDFs, Image and XPS to PDF conversion, PDF repair and linearization, PDF to scanned file conversion

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Factory Plus | Free | one-time |


### SAMS3校園差勤管理系統

[App page](https://appshunter.io/ios/app/sams3/id6796341694)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Factory Plus free?

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

### Is SAMS3校園差勤管理系統 free?

SAMS3校園差勤管理系統 is free to download, with no in-app purchases.

### Do PDF Factory Plus or SAMS3校園差勤管理系統 have ads?

Neither PDF Factory Plus nor SAMS3校園差勤管理系統 shows ads.

### Which is updated more often, PDF Factory Plus or SAMS3校園差勤管理系統?

PDF Factory Plus ships an update every 26 months, and SAMS3校園差勤管理系統 every 2 weeks. Most recently, PDF Factory Plus was updated on October 2, 2026 and SAMS3校園差勤管理系統 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.*