# Motion Detector Camera vs PDF Reader Auto Scroll

The clearest difference is review sentiment: PDF Reader Auto Scroll at 100% against Motion Detector Camera's 13%. PDF Reader Auto Scroll also leads on rating (4.5 vs 2.0) and update cadence (every 5 days vs every 27 months). Motion Detector Camera's advantage is price ($3.99 vs $9.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Motion Detector Camera costs $3.99 and PDF Reader Auto Scroll $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PDF Reader Auto Scroll holds the better App Store score, 4.5 against 2.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 13% of Motion Detector Camera's written reviews are positive against 100% of PDF Reader Auto Scroll's.

Motion Detector Camera ships an update every 27 months, PDF Reader Auto Scroll every 5 days. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Motion Detector Camera | PDF Reader Auto Scroll |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/motion-detector-camera/id1132847115/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pdf-reader-auto-scroll/id6736847843/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 12.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Size | 43 MB | 1 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Abdulkarim Nasir](https://appshunter.io/developer/1463436050) |

## What reviewers say

### Motion Detector Camera

[App page](https://appshunter.io/ios/app/motion-detector-camera/id1132847115)

This app transforms your device into a motion-detecting security camera. It uses advanced algorithms to detect movement, sound an alert, and automatically record video or capture images of detected objects. It's ideal for monitoring pets, securing your home, or any surveillance needs.

**Highlights:** Advanced motion detection algorithm, Automatic recording and image capture, Front/back camera support, Adjustable video/image sizes, Human, cat, or dog detection, Dimmable screen option, Date, time, and object type embedding

**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 Motion Detector Camera free?

Motion Detector Camera costs $3.99, with no in-app purchases.

### Is PDF Reader Auto Scroll free?

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

### Which has better reviews, Motion Detector Camera or PDF Reader Auto Scroll?

PDF Reader Auto Scroll is rated higher. Motion Detector Camera averages 2.0 out of 5 from 4 ratings, while PDF Reader Auto Scroll averages 4.5 from 2 ratings.

### Do Motion Detector Camera or PDF Reader Auto Scroll have ads?

Neither Motion Detector Camera nor PDF Reader Auto Scroll shows ads.

### Which is updated more often, Motion Detector Camera or PDF Reader Auto Scroll?

Motion Detector Camera ships an update every 27 months, and PDF Reader Auto Scroll every 5 days. Most recently, Motion Detector Camera was updated on October 10, 2026 and PDF Reader Auto Scroll on September 30, 2026.

---

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