# BookSlayer vs FoxMark

The clearest difference is review sentiment: FoxMark at 67% against BookSlayer's 0%. FoxMark also leads on ads (none vs shown) and update cadence (every 5 days vs fortnightly). BookSlayer's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. BookSlayer sells 8 one-off in-app purchases and FoxMark sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

BookSlayer ships an update fortnightly, FoxMark every 5 days. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | BookSlayer | FoxMark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (5 ratings)](https://appshunter.io/ios/app/foxmark-reading-tracker/id6780550709/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 99 MB | 62 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Steven Heuzinkveld](https://appshunter.io/developer/1833969157) | [CARMEN MARIE WARD](https://appshunter.io/developer/6780550711) |

## What reviewers say

### BookSlayer

[App page](https://appshunter.io/ios/app/bookslayer/id6751204622)

Organize your reading, track progress, and discover new indie authors with this reader-focused app. Features include custom notes, reading challenges, and shareable progress reports. Enjoy a streamlined experience with no login required.

**Highlights:** Customized reading challenges, Shareable progress tracking, Indie author discovery, Organize books by status, Save custom notes and quotes, Monthly wrap-up reports, Night mode

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Word Warrior | $0.99 | one-time |
| Page Pounder | $1.99 | one-time |
| Novel Nomad | $2.99 | one-time |
| Book Blitzer | $4.99 | one-time |
| Tome Tamer | $9.99 | one-time |
| Narrative Ninja | $19.99 | one-time |
| Story Slayer | $49.99 | one-time |
| Library Legend | $99.99 | one-time |


### FoxMark

[App page](https://appshunter.io/ios/app/foxmark-reading-tracker/id6780550709)

Organize your reading with custom shelves, track page progress, and discover new books. Get personalized yearly recaps of your reading habits and connect with other readers. Premium features offer advanced insights.

**Highlights:** Customizable reading shelves, Page progress tracking, Book discovery and search, Personalized reading stats, Yearly reading recaps, Social reading features

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bookmark'd Premium | $2.99 | per month |
| Bookmark'd Premium | $19.99 | per year |


## Frequently asked questions

### Is BookSlayer free?

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

### Is FoxMark free?

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

### Do BookSlayer or FoxMark have ads?

BookSlayer shows ads; FoxMark does not.

### Which is updated more often, BookSlayer or FoxMark?

BookSlayer ships an update fortnightly, and FoxMark every 5 days. Most recently, BookSlayer was updated on October 6, 2026 and FoxMark on October 8, 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.*