Doongsil vs Book Yappy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Doongsil
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Make time for your goals with a little adventure. Our adorable friends dream of traveling to space in hot air balloons. What is your goal? Join them on a journey of your own. As you spend time focusing, your balloon rises higher toward space. - Customize your balloon, basket and character to make your goals your own. - Stay focused with a timer and watch your balloon rise. - Record your daily activities with notes and photos, and look back on your progress.
Book Yappy
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.
- Reading habit tracking
- Reading motivation tools
- Book character chat
- Reading data analysis
- Note taking
- Data syncing (subscription)
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Book Yappy helps you track your reading, be more engaged and motivated while reading, develop lasting reading habits, chat with book characters, and more! NOTE: The BookYappy+ subscription is needed for data syncing, more character chats, and more! EULA: https://d1af2lvvh100pg.cloudfront.net/bookyap/terms.pdf For feature suggestions or questions, leave a rating or contact: team@fbdstudio.com
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Doongsil | Book Yappy |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 11 months | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 42 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Minseok Song | Fajar Dirham |
In-app purchases
Doongsil
- Doongsil Pro$3.99
Book Yappy
- BookYap Plus Monthly7 Days trial$3.991 Month
- BookYap Plus Yearly7 Days trial$29.991 Year
