# PD SGIV vs Book Tracker

The clearest difference is rating: PD SGIV at 5.0 against Book Tracker's 4.1. PD SGIV also leads on in-app purchases (none vs 10) and iOS requirement (15.6 vs 17.0). Book Tracker's advantage is ratings volume (107 vs 1) and update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Book Tracker sells 10 in-app purchases, starting at $2.99 per month. PD SGIV asks for nothing beyond the download.

PD SGIV holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Book Tracker has 107 ratings behind it against 1, so its average is the more settled of the two.

PD SGIV ships an update every 2 months, Book Tracker every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PD SGIV | Book Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pd-sgiv/id1441746491/reviews)** | [4.1 (107 ratings)](https://appshunter.io/ios/app/book-tracker-bookie/id6443825869/reviews) |
| Number of ratings | 1 | **107** |
| Positive reviews | — | 29.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 77 MB | 202 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [VSB Tecnologias Limitada](https://appshunter.io/developer/1359457345) | [Jakub Milcarz](https://appshunter.io/developer/1631892122) |

## What reviewers say

### 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


### Book Tracker

[App page](https://appshunter.io/ios/app/book-tracker-bookie/id6443825869)

This app helps you organize your book collection, track your reading progress, and build a reading habit. It features a visually stunning interface with customizable themes and advanced tracking options. Capture insights, set reading challenges, and visualize your reading journey.

**Highlights:** Book tracking and digital bookshelf, Customizable themes and Liquid Glass design, Reading journal with notes and quotes, Reading challenge and progress tracking, Advanced metadata and custom properties, Year-in-books visualization

**Features:** Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bookie+ Monthly | $2.99 | per month |
| Bookie+ Weekly | $4.99 | per 7 days |
| Bookie+ (Monthly) | $4.99 | per month |
| Bookie+ Weekly | $5.99 | per 7 days |
| Bookie+ (Annual) | $12.99 | per year |
| Bookie+ Annual | $19.99 | per year |
| Bookie+ (Annual) | $24.99 | per year |
| Bookie+ (Lifetime) | $24.99 | one-time |
| Bookie+ Lifetime | $39.99 | one-time |
| Bookie+ (Lifetime) | $49.99 | one-time |


## Frequently asked questions

### Is PD SGIV free?

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

### Is Book Tracker free?

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

### Which has better reviews, PD SGIV or Book Tracker?

PD SGIV is rated higher. PD SGIV averages 5.0 out of 5 from 1 ratings, while Book Tracker averages 4.1 from 107 ratings.

### Do PD SGIV or Book Tracker have ads?

Neither PD SGIV nor Book Tracker shows ads.

### Which is updated more often, PD SGIV or Book Tracker?

PD SGIV ships an update every 2 months, and Book Tracker every 3 weeks. Most recently, PD SGIV was updated on November 2, 2026 and Book Tracker on November 3, 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.*