# PVT Research Tool vs Elsevier eBooks+

The clearest difference is rating: Elsevier eBooks+ at 4.7 against PVT Research Tool's 4.0. Elsevier eBooks+ also leads on ratings volume (1.9K vs 8) and review sentiment (43% vs 33%). PVT Research Tool's advantage is monetization model (free vs freemium) and iOS requirement (12.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Elsevier eBooks+ holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Elsevier eBooks+ has 1.9K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 33% of PVT Research Tool's written reviews are positive against 43% of Elsevier eBooks+'s.

## The numbers

| Metric | PVT Research Tool | Elsevier eBooks+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (8 ratings)](https://appshunter.io/ios/app/pvt-research-tool/id1475726298/reviews) | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/elsevier-ebooks-plus/id1643980050/reviews)** |
| Number of ratings | 8 | **1.9K** |
| Positive reviews | 33.3% of reviews | **42.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | **Free** | Freemium |
| Size | 30 MB | 183 MB |
| Requires iOS | **12.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Texas A&M University System CSE](https://appshunter.io/developer/1462337505) | [Elsevier Inc.](https://appshunter.io/developer/367031326) |

## What reviewers say

### PVT Research Tool

[App page](https://appshunter.io/ios/app/pvt-research-tool/id1475726298)

This application assists researchers in gathering data on alertness changes related to fatigue. It is designed to measure reaction times and assess the impact of sleep loss or extended wakefulness.

**Highlights:** Measures reaction time, Assesses fatigue-related changes, Collects research data, Supports sleep loss studies, Evaluates alertness

**Features:** macOS Compatibility

**In-app purchases:** none


### Elsevier eBooks+

[App page](https://appshunter.io/ios/app/elsevier-ebooks-plus/id1643980050)

Access your medical textbooks offline and enhance your learning with tools for note-taking, highlighting, and flashcard creation. Sync your progress and annotations across devices for a seamless study experience.

**Highlights:** Offline book access, Note-taking and highlighting, Flashcard creation, Cross-device syncing, In-book search, Figure viewing and zooming

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Student / Study friendly
- 🚀 Enhances content
- 👍 Ebooks from Elsevier
- 👍 Great app

**What reviewers complain about**

- 🐛 Unable to view images/tables
- 🐛 Useless for medical textbooks
- 🐛 Positioning issues
- 🐛 Scrolling and zooming problems
- 🐛 Slow loading times

**Reported bugs**

- Figures placed at the end of chapters
- Search function only works for single words
- Inability to clear search history
- Freezing and crashing issues
- Incompatibility with older devices

**Requested features**

- More highlighting and note-taking options
- Ability to write, draw, or paste images on pages
- Separate flashcard option integration with Anki/Quizlet
- More font size options
- Streamlined text selection for voiceover


## Frequently asked questions

### Is PVT Research Tool free?

PVT Research Tool is free to download, with no in-app purchases.

### Is Elsevier eBooks+ free?

Elsevier eBooks+ is free to download, with no in-app purchases.

### Which has better reviews, PVT Research Tool or Elsevier eBooks+?

Elsevier eBooks+ is rated higher. PVT Research Tool averages 4.0 out of 5 from 8 ratings, while Elsevier eBooks+ averages 4.7 from 1.9K ratings.

### Do PVT Research Tool or Elsevier eBooks+ have ads?

Neither PVT Research Tool nor Elsevier eBooks+ shows ads.

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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.*