# Bookshelf vs CCPS Glossary

The clearest difference is ratings volume: Bookshelf at 80K against CCPS Glossary's 2. Bookshelf also leads on chart position (#70 vs unranked). CCPS Glossary's advantage is rating (5.0 vs 4.7) and iOS requirement (13.4 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CCPS Glossary holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Bookshelf has 80K ratings behind it against 2, so its average is the more settled of the two.

Bookshelf ships an update every 6 weeks, CCPS Glossary every 2 months. The most recent releases landed on October 27, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Bookshelf | CCPS Glossary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (80K ratings)](https://appshunter.io/ios/app/bookshelf/id389359495/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ccps-glossary/id1096070774/reviews)** |
| Number of ratings | **80K** | 2 |
| Positive reviews | 21.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Best chart rank | **#70** | — |
| Size | 185 MB | 18 MB |
| Requires iOS | 17.6 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VitalSource Technologies, Inc.](https://appshunter.io/developer/333263745) | [AIChE](https://appshunter.io/developer/726639920) |

## What reviewers say

### Bookshelf

[App page](https://appshunter.io/ios/app/bookshelf/id389359495)

**Currently charting:** #70 Top Free · Education (US App Store)

Access and study your digital textbooks on your iPad or iPhone. This app allows for offline reading, note-taking, flashcard creation, and customizable reading settings. Sync your progress across devices for a seamless study experience.

**Highlights:** Offline reading, Customizable highlighters and notes, Flashcard creation, Personalized reading settings, Read Aloud feature, Cross-device syncing

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 📚 Convenient access to textbooks
- 🔍 Useful search functionality
- 📚 Offline reading capability
- 🔖 Bookmark and note-taking features
- 🔊 Text-to-speech option

**What reviewers complain about**

- 🐛 Buggy highlighting and annotation tools
- 🖋️ Lack of Apple Pencil support
- 📚 Restricted functionality compared to other e-book apps
- 🔍 Inconsistent search and navigation experience
- 🔋 High battery consumption

**Reported bugs**

- Frequent crashes and freezes
- Issues with page loading and scrolling
- Inconsistent behavior when switching between devices
- Unreliable text-to-speech functionality

**Requested features**

- Improved highlighting and annotation tools
- Apple Pencil support for note-taking
- More customization options (e.g., font, layout, night mode)
- Seamless cross-device synchronization
- Enhanced search and navigation features


### CCPS Glossary

[App page](https://appshunter.io/ios/app/ccps-glossary/id1096070774)

This educational tool provides definitions for terms and acronyms commonly found in Chemical Process Safety literature. It helps users expand their understanding of the field and look up unfamiliar terminology.

**Highlights:** Define chemical process safety terms, Look up unknown acronyms, Increase knowledge of chemical process safety, Handy reference tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bookshelf free?

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

### Is CCPS Glossary free?

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

### Which has better reviews, Bookshelf or CCPS Glossary?

CCPS Glossary is rated higher. Bookshelf averages 4.7 out of 5 from 80K ratings, while CCPS Glossary averages 5.0 from 2 ratings.

### Do Bookshelf or CCPS Glossary have ads?

Neither Bookshelf nor CCPS Glossary shows ads.

### Which is updated more often, Bookshelf or CCPS Glossary?

Bookshelf ships an update every 6 weeks, and CCPS Glossary every 2 months. Most recently, Bookshelf was updated on October 27, 2026 and CCPS Glossary on October 21, 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.*