# Book Tracker vs Marcus

The clearest difference is update cadence: Book Tracker at every 8 days against Marcus's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Book Tracker sells 5 in-app purchases, starting at $2.99 per month and Marcus sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Book Tracker ships an update every 8 days, Marcus every 2 months. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Book Tracker | Marcus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/book-tracker-booklio/id6758706112/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Freemium | — |
| Size | 49 MB | 65 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Annika Reinecke](https://appshunter.io/developer/1819480810) | [Vukasin Rancic](https://appshunter.io/developer/1886442082) |

## What reviewers say

### Book Tracker

[App page](https://appshunter.io/ios/app/book-tracker-booklio/id6758706112)

Manage your personal library, track reading progress, and journal your thoughts. Add books via ISBN scanner, organize with custom lists, and analyze your reading habits with detailed statistics and visual charts.

**Highlights:** ISBN scanner for quick book addition, Customizable reading lists (Currently Reading, Finished, Wishlist), Reading progress and audiobook tracking, Detailed book ratings and notes, In-depth reading statistics and goals, Homescreen widgets for current book and goals

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 month) | $2.99 | per month |
| Premium (1 month) | $2.99 | per month |
| Premium (1 year) | $14.99 | per year |
| Premium (1 year) | $24.99 | per year |
| Premium (1 year) | $24.99 | per year |


### Marcus

[App page](https://appshunter.io/ios/app/marcus-book-and-reading-tracker/id6792703147)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marcus Pro Monthly | $6.99 | per month |
| Marcus Pro Annual | $49.99 | per year |


## Frequently asked questions

### Is Book Tracker free?

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

### Is Marcus free?

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

### Do Book Tracker or Marcus have ads?

Neither Book Tracker nor Marcus shows ads.

### Which is updated more often, Book Tracker or Marcus?

Book Tracker ships an update every 8 days, and Marcus every 2 months. Most recently, Book Tracker was updated on October 28, 2026 and Marcus on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*