BookSmart by Worldreader vs Librella
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BookSmart by Worldreader
Access thousands of free books, learning materials, and activities in multiple languages for K-12 children. Designed to foster reading development and support learning goals, it offers engaging content for both children and caretakers to enjoy together.
- Thousands of free books
- Learning materials and activities
- Multiple languages
- K-12 focus
- Reading development support
- Interactive activities for comprehension
Read full descriptionHide full description
BookSmart, powered by Worldreader, is a free digital app that helps parents and caregivers build simple, daily reading routines with children ages 0 to 8. Through thousands of culturally relevant books, playful activities, and practical tips, BookSmart supports shared reading experiences that strengthen early learning and family connection. Designed around Worldreader's research and experience and backed by brain science, BookSmart meets families where they are, on the devices they already use, making it easy to read together anytime, anywhere. BookSmart features books in five languages, including Arabic, English, Hindi, Kiswahili, and Spanish, along with monthly Reading Challenges that encourage consistent engagement and fun parenting tips and activities. No paywalls. No subscriptions. Always free. From bedtime stories to early literacy skills, BookSmart's multilingual library of kids' books and children's stories helps families build a reading habit they can keep coming back to. About Worldreader: Worldreader is a global tech nonprofit on a mission to get families reading. By supporting parents and caregivers with free and accessible digital tools and resources, we build reading routines that improve the learning outcomes and social-emotional skills of children in underserved communities around the globe. With more than 15 years of experience designing, testing, and scaling evidence-based, adaptive approaches to family reading, Worldreader understands what it takes to address the global literacy crisis. Our work is grounded in research, shaped by local context, and delivered through trusted partnerships and platforms. BookSmart is trusted by families, educators, and organizations in over 100 countries.
Librella
Read full descriptionHide full description
Librella enables users to virtually list their physical books that they have in their bookshelves, in order to borrow from one another. Users may request to borrow books from one another and can easily handle the status of the entire process of handing over the book to receiving back in a dedicated screen that includes chat section for discussion. In other words, with Librella, we become each other's libraries.
Screenshots
Verdict
The clearest difference is update cadence: BookSmart by Worldreader at every 9 days against Librella's every 2 months. Librella's advantage is iOS requirement (13.4 vs 15.6). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.
BookSmart by Worldreader ships an update every 9 days, Librella every 2 months. The most recent releases landed on September 14, 2026 and May 16, 2026 respectively.
| Parameter | BookSmart by Worldreader | Librella |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (24 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 55 MB | 17 MB |
| Age rating | 4+ | 17+ |
| Developer | Worldreader | Emin Durak |
In-app purchases
BookSmart by Worldreader
No in-app purchases
Librella
No in-app purchases
Questions
Is BookSmart by Worldreader free?
Is Librella free?
Do BookSmart by Worldreader or Librella have ads?
Which is updated more often, BookSmart by Worldreader or Librella?
Other comparisons















