# Book Towers vs Modam

The clearest difference is in-app purchases: Modam at none against Book Towers's 14. Modam also leads on ads (none vs shown) and update cadence (weekly vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Book Towers sells 14 in-app purchases, starting at $1.99 per month. Modam asks for nothing beyond the download.

Book Towers ships an update every 2 weeks, Modam weekly. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Book Towers | Modam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (272 ratings)](https://appshunter.io/ios/app/book-towers-reading-tracker/id1472538417/reviews)** | — |
| Number of ratings | **272** | — |
| Positive reviews | 87.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 161 MB | 39 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sungeun Park](https://appshunter.io/developer/1406693209) | [sangjoon son](https://appshunter.io/developer/1834973157) |

## What reviewers say

### Book Towers

[App page](https://appshunter.io/ios/app/book-towers-reading-tracker/id1472538417)

Track your reading progress by stacking virtual books to reach a height goal. Log finished, current, and desired reads with ratings and notes. Unlock and customize collectible characters as your tower grows.

**Highlights:** Stack virtual books to reach height goals, Track reading status (Finished, Current, Want to Read, Stopped), Add ratings, reviews, and notes, Unlock and customize over 60 characters, View monthly reading statistics, Export reading logs, Customize app appearance

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $14.99 | per year |
| 레벨2 | $0.99 | one-time |
| 3단계 캐릭터 | $0.99 | one-time |
| 4단계 캐릭터 | $0.99 | one-time |
| 5단계 캐릭터 | $0.99 | one-time |
| 6단계 캐릭터 | $0.99 | one-time |
| 7단계 캐릭터 | $0.99 | one-time |
| 코인 100 | $1.49 | one-time |
| 코인 150 | $2.79 | one-time |
| 코인 300 | $4.99 | one-time |
| 코인 500 | $7.99 | one-time |
| 코인 700 | $9.99 | one-time |
| 코인 1200 | $14.99 | one-time |


### Modam

[App page](https://appshunter.io/ios/app/modam/id6757088246)

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

**In-app purchases:** none


## Frequently asked questions

### Is Book Towers free?

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

### Is Modam free?

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

### Do Book Towers or Modam have ads?

Book Towers shows ads; Modam does not.

### Which is updated more often, Book Towers or Modam?

Book Towers ships an update every 2 weeks, and Modam weekly. Most recently, Book Towers was updated on October 25, 2026 and Modam on October 11, 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.*