# Doongsil vs Book Yappy

The clearest difference is ads: Book Yappy at none against Doongsil's shown. Book Yappy also leads on update cadence (every 10 days vs every 11 months). Doongsil's advantage is iOS requirement (15.0 vs 17.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Doongsil sells 1 one-off in-app purchase and Book Yappy sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Doongsil ships an update every 11 months, Book Yappy every 10 days. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Doongsil | Book Yappy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/book-yappy-reading-tracker/id6747359808/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 10 days** |
| Monetization | — | Freemium |
| Size | 42 MB | 73 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Minseok Song](https://appshunter.io/developer/1680507122) | [Fajar Dirham](https://appshunter.io/developer/1597228456) |

## What reviewers say

### Doongsil

[App page](https://appshunter.io/ios/app/doongsil/id6478134949)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Doongsil Pro | $3.99 | one-time |


### Book Yappy

[App page](https://appshunter.io/ios/app/book-yappy-reading-tracker/id6747359808)

This app helps you track your reading progress, stay motivated, and build consistent reading habits. Engage with virtual book characters and analyze your reading data. A subscription unlocks advanced features like data syncing and more character interactions.

**Highlights:** Reading habit tracking, Reading motivation tools, Book character chat, Reading data analysis, Note taking, Data syncing (subscription)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BookYap Plus Monthly | $3.99 | per month |
| BookYap Plus Yearly | $29.99 | per year |


## Frequently asked questions

### Is Doongsil free?

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

### Is Book Yappy free?

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

### Do Doongsil or Book Yappy have ads?

Doongsil shows ads; Book Yappy does not.

### Which is updated more often, Doongsil or Book Yappy?

Doongsil ships an update every 11 months, and Book Yappy every 10 days. Most recently, Doongsil was updated on October 17, 2026 and Book Yappy on October 21, 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.*