# Thorium Reader vs BookCard

The clearest difference is in-app purchases: Thorium Reader at none against BookCard's 3. Thorium Reader also leads on update cadence (every 3 weeks vs every 6 weeks). BookCard's advantage is iOS requirement (18.0 vs 26.1). On price, ads and device support there is nothing between them.

Both are free to download. BookCard sells 3 in-app purchases, starting at $2.99 per month. Thorium Reader asks for nothing beyond the download.

Thorium Reader ships an update every 3 weeks, BookCard every 6 weeks. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Thorium Reader | BookCard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (11 ratings)](https://appshunter.io/ios/app/thorium-reader/id6745025189/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 46 MB | 5 MB |
| Requires iOS | 26.1 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Readium](https://appshunter.io/developer/1232183924) | [Mitaanshu Agarwal](https://appshunter.io/developer/1896724075) |

## What reviewers say

### Thorium Reader

[App page](https://appshunter.io/ios/app/thorium-reader/id6745025189)

Organize all your ebooks, comics, and manga in a single app. Customize your reading experience with adjustable text, fonts, and themes. Listen to audiobooks and zoom into visual content with ease.

**Highlights:** Unified bookshelf for all content, Adjustable text size and spacing, Multiple font options, Text-to-speech audio playback, Zoom for comics and manga, Offline dictionary and translation, Import EPUB, PDF, CBZ files

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

**In-app purchases:** none


### BookCard

[App page](https://appshunter.io/ios/app/bookcard-reading-tracker/id6772509540)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BookCardReadingTrackerMonthly | $2.99 | per month |
| BookCardReadingTrackerYearly | $19.99 | per year |
| BookCard Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Thorium Reader free?

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

### Is BookCard free?

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

### Do Thorium Reader or BookCard have ads?

Neither Thorium Reader nor BookCard shows ads.

### Which is updated more often, Thorium Reader or BookCard?

Thorium Reader ships an update every 3 weeks, and BookCard every 6 weeks. Most recently, Thorium Reader was updated on September 28, 2026 and BookCard on September 15, 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.*