Hoowlib vs BookGrass
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Hoowlib
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**Hoowlib** is your all-in-one reading tracker and personal library app. Effortlessly save and organize your books, add new titles to your collection, and mark them as read once youโve finished. You can rate each book, jot down thoughts, and keep your entire reading journey in one place. Hoowlib also helps you build better reading habits by tracking your progress day by day, giving you insights into your routine and motivating you to read more consistently. **Your privacy matters:** Hoowlib stores all your data securely on your device with no external services or tracking. No accounts, no cloud sync โ just a private, secure reading experience that's fully yours.
BookGrass
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Build your reading habit, one tap at a time. BookGrass is the simplest way to track your daily reading. No complicated features, no book databases to manage โ just tap when you read and watch your grass grow. โ SIMPLE TRACKING Tap once to mark today as read. That's it. No page counts, no timers, no lengthy forms. Reading should be enjoyable, and so should tracking it. โ VISUALIZE YOUR PROGRESS See your reading history as a beautiful grass grid. Each green square represents a day you read. Watch your garden grow over 3 months and feel the satisfaction of building a habit. โ STAY MOTIVATED - Track your current reading streak - See your total reading days - Don't break the chain โ keep your grass alive! โ POWERFUL WIDGETS Add BookGrass widgets to your home screen: - Small: This week's progress + streak count - Medium: One month view - Large: Full 3-month grass grid with stats Tap directly on widgets to record your reading without even opening the app. โ SHARE YOUR ACHIEVEMENT Proud of your reading streak? Share your grass grid image with friends and inspire others to read more. โ PRIVACY FIRST All your data stays on your device. No account required, no data collection. --- Start growing your reading grass today. One tap, one day, one book at a time.
Screenshots
Verdict
The clearest difference is update cadence: BookGrass at daily against Hoowlib's every 6 weeks. Hoowlib's advantage is iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Hoowlib ships an update every 6 weeks, BookGrass daily. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.
| Parameter | Hoowlib | BookGrass |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Daily โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 โ better | 17.6 |
| Further details โ not scored | ||
| Size | 20 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Nikolas Palm | Jaeyoung Heo |
In-app purchases
Hoowlib
No in-app purchases
BookGrass
No in-app purchases









