DLL Ebook

Native apps for learning languages

DLL Ebook mobile app - Deutsch Buch
DDL Ebook available coursebooks

Native apps for learning languages

Jun. 2016 - Ongoing


We wanted to make learning foreign languages easier by using a mobile app that gives a student access to content from multiple coursebooks and tracks his progress.

DDL Ebook mobile app - Spanish-English translation
DDL Ebook app - user's profile

What were we responsible for?

  • developing a native iOS app
  • developing a native Android app
DDL Ebook mobile app
DDL Ebook mobile app

Biggest challenge

Clear presentation of content was our priority, even though it wasn’t easy to achieve a satisfactory result.

Why was it so important? This app gives users access to a lot of content. It had to be properly structured, so we could make navigation easy and facilitate learning.

DDL Ebook mobile app
DDL Ebook Android app

Key features

  • free access to digital coursebooks user already has as paper books
  • unlocking with QR code
  • progress tracking
  • content grouped into categories: vocabulary, translations, and audio records
  • possibility to buy new digital coursebooks.
DDL Ebook mobile app
DDL Ebook mobile app


About DLL – Direct Language Lab

It’s the Polish publishing house that specializes in coursebooks for learning foreign languages based on direct method.

Direct Language Lab was established in 2008 and ever since then it provides language schools with coursebooks. Currently, students in over 30 countries use DLL publications to become fluent in such languages as English, German, Spanish, French, Italian, Russian, Portuguese, and Polish.

DDL Ebook mobile app - menu
DDL Ebook mobile app


Why choose us?

Logo Mobile Trends Awards

Mobile Trends Awards 2021

Winning app in

Nagroda Legalnych Bukmacherów

Legal Bookmakers Award 2019

Best Mobile App

Mobile Trends Awards logo

Mobile Trends Awards 2023



client reviews

Clutch logo

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