# KuCalc vs PDF Reader Auto Scroll

The clearest difference is price: KuCalc at Free against PDF Reader Auto Scroll's $9.99. KuCalc also leads on iOS requirement (11.0 vs 13.0). PDF Reader Auto Scroll's advantage is update cadence (every 5 days vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

KuCalc is free to download; PDF Reader Auto Scroll costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KuCalc ships an update every 3 months, PDF Reader Auto Scroll every 5 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | KuCalc | PDF Reader Auto Scroll |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pdf-reader-auto-scroll/id6736847843/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Mineaki Sakatoku](https://appshunter.io/developer/1674976728) | [Abdulkarim Nasir](https://appshunter.io/developer/1463436050) |

## What reviewers say

### KuCalc

[App page](https://appshunter.io/ios/app/kucalc/id6445941447)

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

**In-app purchases:** none


### PDF Reader Auto Scroll

[App page](https://appshunter.io/ios/app/pdf-reader-auto-scroll/id6736847843)

This utility app offers hands-free reading of PDF documents with customizable automatic page scrolling. It allows users to manage files, adjust scroll speed and direction, and maintain reading progress without manual interaction.

**Highlights:** Automatic page scrolling, Adjustable scroll speed and direction, Hands-free reading, PDF file management, Night mode, Resume reading progress

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

**In-app purchases:** none


## Frequently asked questions

### Is KuCalc free?

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

### Is PDF Reader Auto Scroll free?

PDF Reader Auto Scroll costs $9.99, with no in-app purchases.

### Do KuCalc or PDF Reader Auto Scroll have ads?

Neither KuCalc nor PDF Reader Auto Scroll shows ads.

### Which is updated more often, KuCalc or PDF Reader Auto Scroll?

KuCalc ships an update every 3 months, and PDF Reader Auto Scroll every 5 days. Most recently, KuCalc was updated on October 7, 2026 and PDF Reader Auto Scroll on October 16, 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.*