# Bookshelf vs Deep Study

The clearest difference is price: Bookshelf at Free against Deep Study's $9.99. Bookshelf also leads on chart position (#138 vs unranked). Deep Study's advantage is update cadence (every 2 weeks vs every 6 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Bookshelf is free to download; Deep Study costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bookshelf ships an update every 6 weeks, Deep Study every 2 weeks. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Bookshelf | Deep Study |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.7 (80K ratings)](https://appshunter.io/ios/app/bookshelf/id389359495/reviews)** | — |
| Number of ratings | **80K** | — |
| Positive reviews | 21.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Best chart rank | **#138** | — |
| Size | 185 MB | 1 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VitalSource Technologies, Inc.](https://appshunter.io/developer/333263745) | [Berries in the Basket UG](https://appshunter.io/developer/1477618656) |

## What reviewers say

### Bookshelf

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

**Currently charting:** #138 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


### Deep Study

[App page](https://appshunter.io/ios/app/deep-study-study-timer/id6450757007)

**In-app purchases:** none


## Frequently asked questions

### Is Bookshelf free?

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

### Is Deep Study free?

Deep Study costs $9.99, with no in-app purchases.

### Do Bookshelf or Deep Study have ads?

Neither Bookshelf nor Deep Study shows ads.

### Which is updated more often, Bookshelf or Deep Study?

Bookshelf ships an update every 6 weeks, and Deep Study every 2 weeks. Most recently, Bookshelf was updated on November 11, 2026 and Deep Study on November 7, 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.*