Audiobook mobile app development

An audio production company is on a mission to make books in Croatian more accessible and enjoyable. Bringing their vision to life, we created book&zvook, the first audiobook mobile app on the local market.

Android and iOS mobile app development book&zvook
Android and iOS mobile app development book&zvook
Android and iOS mobile app development book&zvook
  • Solution design
  • Project management
  • UX/UI design
  • Technical consulting
  • Backend development
  • Frontend development
  • Cross-platform mobile app development (Flutter)

Books tailored to modern readers

The pioneering mobile app for Croatian audiobooks book&zvook was born from the customer's vision to make regional literature more accessible. Prior to the app's launch, Croatian speakers faced a void of such content, primarily available in foreign languages. Our task was to create an app to captivate readers with limited time and those who prefer listening over reading. In addition, we needed to develop a web application for client's seamless content management.

Android and iOS audiobook mobile app development

The engaging UX/UI design and overall functionality, ensuring an attractive and user-friendly experience, have been paramount for achieving a steady growth of users and downloads.

Users can explore book&zvook editions, access free excerpts, build a personalized audio library, and enjoy a seamless reading experience across all devices. The app remembers progress, allows downloads for offline listening, offers speed adjustment, note-taking during listening, and easy book searches.


  • Cross-device syncing in audiobook zvook&book

    Cross-device syncing

    Experience a fluid reading journey as our cross-device progress tracking feature seamlessly syncs progress.

  • Adjust narration speed in audiobook mobile app book&zvook

    Adjust narration speed

    Tailor the audiobook experience to your liking with the option to adjust the narration speed.

  • Offline listening in audiobook mobile app book&zvook

    Offline listening

    Download your favorite books - entire, specific chapters or free excerpts - and enjoy them offline.

  • In-app purchase feature in audiobook book&zvook

    In-app purchase

    Buy your audiobooks effortlessly using Google Pay and Apple Pay through the book&zvook app.

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Customer testimonial
“With no previous experience in mobile app development, we looked for a company that would guide us and offer expertise in all phases of the production process. Undabot proved as an excellent choice for their experience and extensive knowledge in the field of mobile app development provided certainty and reliability throughout the project.”
Lana Deban
Co-founder, Audio Store Transonica
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