# PDF Scanner Assistant vs Site Calc Pro

The clearest difference is price: Site Calc Pro at Free against PDF Scanner Assistant's $0.99. Site Calc Pro also leads on update cadence (daily vs monthly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Site Calc Pro is free to download; PDF Scanner Assistant costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PDF Scanner Assistant ships an update monthly, Site Calc Pro daily. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PDF Scanner Assistant | Site Calc Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Size | 9 MB | 85 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [乐祥 胡](https://appshunter.io/developer/1572365721) | [Troy Knight](https://appshunter.io/developer/1419339802) |

## What reviewers say

### PDF Scanner Assistant

[App page](https://appshunter.io/ios/app/pdf-scanner-assistant/id6747924395)

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

**In-app purchases:** none


### Site Calc Pro

[App page](https://appshunter.io/ios/app/site-calc-pro/id6767140419)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Scanner Assistant free?

PDF Scanner Assistant costs $0.99, with no in-app purchases.

### Is Site Calc Pro free?

Site Calc Pro is free to download, with no in-app purchases.

### Do PDF Scanner Assistant or Site Calc Pro have ads?

Neither PDF Scanner Assistant nor Site Calc Pro shows ads.

### Which is updated more often, PDF Scanner Assistant or Site Calc Pro?

PDF Scanner Assistant ships an update monthly, and Site Calc Pro daily. Most recently, PDF Scanner Assistant was updated on October 25, 2026 and Site Calc Pro on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*