Take your English language skills to the next level!

Duo.Training helps you quickly identify your language knowledge gaps so you can focus your studies on where it is needed.

Level up your English proficiency

Duo has helped thousands of students and working professionals improve their English, by using its unique AI-driven platform that helps learners quickly identify their grammar weaknesses so they can focus their limited time on where it is needed.

Step 1 - Single questions tests

The single question section will test your English knowledge from over 30 grammar areas.

Step 2 - Identify your weaknesses

Duo will quickly identify specific areas where you have knowledge gaps.

Step 3 - Focus your studies

Focus your studies in areas where you need and also take micro-tests from that specific topic

DUO LEARNS FROM YOU TO TEACH YOU BETTER.

Duo creates your personal Learning path as soon as you answer your first question. The same course is different for everyone.

Assessment testing

The app's unique single-question section will help us help you learn by identifying your knowledge gaps.

Immediate Feedback

You get immediate feedback with explanations after you answer each question, this helps you learn faster.

Auto levelling

The more you improve, the more difficult the questions will become. It will automatically find your Grammar level.

Identify your weaknesses

The Duo.Training algorithm starts building your knowledge gap profile as soon you answer your first question.

Focus your studies

The app will tell you exactly where you need to study by analyzing the history of your answers from the single-question sections.

Topic tests

After reading the study materials on the area where you have a weakness, you can take a 5 questions test of questions only from that topic..

Member Reviews

The Duo.Training app is the perfect learning tool for learners who want to focus on improving their grammar for exams or simple to take their English skill to the next level

The clear explanations and practical exercises allowed me to identify and correct common mistakes. I highly recommend this app

Sebastian

Germany

The app helped me improve my understanding of grammatical concepts and  identify and correct my common mistakes

Aahana

India

The app is fun and easy to use and helped me pass my English exams.  I feel more confident in my writing and speaking abilities

Isabella

Belgium

The online English grammar course greatly improved my understanding of grammar and made my studies easier as it quickly identified where I needed to study

Sophie

The Czech Republic

The app made learning grammar both enjoyable and effective and gave me the confidece to speak more.

Nina

Kenya

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Frequently Asked Questions

The Duo business model is based on in-app rewards so there is no cost to you.

Yes, you can register with Gmail and create an account with any email address.

Yes it is. After you register, you will be asked to select your native language. At the moment we have over 15 localisations

Duo creates a personalized learning path according to the answers you give. By sharing your account you will lose the chance to see what your knowledge gaps are as they will mixed with someone else’s answers. So it isn’t a good idea to share your account

We are in the process of introducing other language-related courses as well as soft-skill courses. All the courses will be available via the same app

Blog Posts

Welcome to “Grammar Gateway,” your guide to mastering English! Whether you’re writing, studying, or improving your skills, we offer tips, advice, and exercises to help you navigate grammar with ease. Join us to communicate more effectively, one rule at a time!

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