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Case Study

Book Pal (BookPro Manual)


The client wanted BookPro to serve as an offline dictionary for Android. It didn’t necessarily have to be a complex app--just the opposite, in fact. The client wanted a user-friendly program.


When designing BookPro, user-friendliness was kept in mind. It’s a small, simple application that busy users will find convenient, as they can quickly pull it out and look up a word without missing a beat.

  • UI/UX
  • Front-end Dev
  • Back-end Dev
  • SEO
  • Android
  • Java
  • XML
  • SQLite
Live Links
  • BookPro is a small application. The home screen has only two buttons: Full Version and Manual
  • Manual
    • You can type a word into a search bar. A suggested drop down screen will appear showing other options for the word that you may have been searching for (i.e. if you type in ‘book’, it may show other options like ‘bookmark,’ ‘bookend,’ etc.). Once you select the word you wanted to search, it will show you the dictionary definition of the word. You can scroll up and down to view all of the definition.

Real Google Reviews

Jonas Peeters

5/5 stars


Great experience working with the Capital Numbers team. They were extremely diligent, accessible and utmost professional in their work. They were worth every euro. We are happy with the results they showed us and also the solutions they come up with to satisfy our needs. I definitely recommend working with them. It is useful to have someone on your side who does have (although limited) knowledge of IT and web hosting.

Per Peterson

5/5 stars


We have found Capital Numbers extremely easy to work with as development partners. They have been great at spending the time on the front-end of projects to understand the full scope which is helpful during development to guide decision-making and potential trade-offs to deliver on time and within budget. They're effective at integrating technical solutions with creative work and we have had a great experience with their project management.

George Levy

5/5 stars


I have been a customer of Capital Numbers for many years and multiple projects across both all my personal websites, and multiple clients. They are my most trusted partner when it comes to any web and mobile development issues.

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