# BookFusion vs PD SGIV

The clearest difference is in-app purchases: PD SGIV at none against BookFusion's 6. PD SGIV also leads on rating (5.0 vs 4.7). BookFusion's advantage is update cadence (every 10 days vs every 2 months) and ratings volume (521 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BookFusion sells 6 in-app purchases, starting at $1.99 per month. PD SGIV asks for nothing beyond the download.

PD SGIV holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: BookFusion has 521 ratings behind it against 1, so its average is the more settled of the two.

BookFusion ships an update every 10 days, PD SGIV every 2 months. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | BookFusion | PD SGIV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (521 ratings)](https://appshunter.io/ios/app/bookfusion/id1141834096/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pd-sgiv/id1441746491/reviews)** |
| Number of ratings | **521** | 1 |
| Positive reviews | 76.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 158 MB | 77 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [BookFusion](https://appshunter.io/developer/1141834095) | [VSB Tecnologias Limitada](https://appshunter.io/developer/1359457345) |

## What reviewers say

### BookFusion

[App page](https://appshunter.io/ios/app/bookfusion/id1141834096)

Manage, read, and organize your entire eBook collection across all devices with cloud synchronization. Customize your reading experience with extensive settings, highlights, and annotations. Supports various formats and offers text-to-speech functionality.

**Highlights:** Cross-platform eBook reader, Cloud synchronization, Organize with virtual bookshelves, Highlights and annotations, Text-to-Speech (TTS), Send to Kindle, Calibre integration

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Casual Monthly | $1.99 | per month |
| Advanced Monthly | $4.99 | per month |
| Power Monthly | $9.99 | per month |
| Casual Yearly | $18.99 | per year |
| Advanced Yearly | $47.99 | per year |
| Power Yearly | $95.99 | per year |

**What reviewers like**

- 🚀 Excellent cross-platform sync
- 👍 Highly customizable reading experience
- 🚀 Seamless Calibre integration
- 👍 Responsive and helpful developers
- 🚀 Smooth reading experience

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 💰 Subscription model may be costly for some
- 🔒 Requires account creation to use
- 🐛 Inconsistent page turn behavior
- 🐛 Issues with PDF and fixed-layout EPUB support

**Reported bugs**

- Highlights and notes not always saving properly
- Reading position sometimes resets unexpectedly
- Widget not functioning as expected
- Occasional crashes and freezes
- Issues with importing certain ebook formats

**Requested features**

- Add page numbers instead of just percentages
- Implement a true dark mode
- Improve PDF viewing and annotation capabilities
- Add support for DJVU format
- Provide an option to purchase a lifetime license


### PD SGIV

[App page](https://appshunter.io/ios/app/pd-sgiv/id1441746491)

Access digital publications from SGIV and receive news updates. This application serves as a reader for digital content and a news aggregator.

**Highlights:** Digital publication reader, News reception, SGIV content access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BookFusion free?

BookFusion is free to download, with in-app purchases available.

### Is PD SGIV free?

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

### Which has better reviews, BookFusion or PD SGIV?

PD SGIV is rated higher. BookFusion averages 4.7 out of 5 from 521 ratings, while PD SGIV averages 5.0 from 1 ratings.

### Do BookFusion or PD SGIV have ads?

Neither BookFusion nor PD SGIV shows ads.

### Which is updated more often, BookFusion or PD SGIV?

BookFusion ships an update every 10 days, and PD SGIV every 2 months. Most recently, BookFusion was updated on October 26, 2026 and PD SGIV on October 22, 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.*