Quickly increase your Duolingo English Test score with the most complete course

Arno’s Score Increase Course has lessons, exercises, and one-on-one tutoring that cover everything you need to make sure that you get a great score on the DET.

Create your free account

Built for the

Screenshot showing the course dashboard for Arno's Score Increase Course for the Duolingo English Test

Arno is proud to be an official, highest-tier partner of the Duolingo English Test!

Save 10% when you book the Duolingo English Test through Arno

Why our course is the best way to get ready for the DET

Instruction from the best

Your teacher will be Arno’s co-founder and Duolingo English Test expert, Otto. You may recognize him from our YouTube channel!

Self-paced course

Most students complete the course in 8 weeks, but you can do the 42 lessons in the course at your pace. You can also pick and choose which sections of the test you want to study for.

Screenshot showing the contents of Arno's Score Increase Course for the Duolingo English Test

Interactive exercises to help you master the material

Listening to lectures is not enough to truly learn what we cover. Our exercises will ensure that you can use what you are learning in order to get the maximum points.

Screenshot of an interactive exercise from Arno's Score Increase Course for the Duolingo English Test

PDF print outs

So that you can review the material offline, we have PDF print outs with all the vocabulary and strategies we cover in the course.

One-on-one tutoring

You can add one-on-one tutoring sessions with Otto. In these sessions, you can practice speaking as well as get personalized feedback on your writing that will enable you to improve immediately.

What students are saying about Arno

Students love Arno because we help them get the scores that they need.

Arno is exactly what I was looking for; it's been a total game changer in my DET preparation. All the available questions, mock tests and the invaluable feedback it provides really prepared me to do my best on the test. I highly recommend it!!!

Alexia from Peru

Arno helped me quickly improve my Duolingo English Test score, which was essential for my dream of becoming a master's degree student in the US. Also, Arno is one of the most useful and impressive AI app implementations I've ever encountered.

Erik from Paraguay

Before using Arno, I was stuck at 120-130 in my DET practice, struggling with writing. Arno’s AI feedback was a game changer, helping me refine my skills. Thanks to Arno, I achieved a 140 on my actual DET. Highly recommend!

Sami from Pakistan

Sincerely thanks for your dedicated efforts for such an incredibly useful website and the instant feedback feature that helped me prepare for the DET very effectively in the limited time. Purchasing credits for instant feedback is a smart move and also a worthy investment.

Buabucha from Thailand

It was a wonderful experience to practice for my Duolingo exam with Arno. Not only did it help me improve my score from 100-110 to 120-130 on Duolingo's practice test, but I also learned how to enhance my word selection in the writing and speaking sections through AI-based instructions from Arno.

Basira from Afghanistan

I was hitting a wall with my speaking and production scores —then came Arno's website. In just 1.5 weeks of practice, I skyrocketed to a 130 in both scores. Huge thanks to Arno for making such an amazing, game-changing platform !!!

Ilsa from Pakistan

I was so desperate when I found Arno. I had taken the Duolingo English Test three times already. I practiced with Arno for two weeks and I finally passed it with 135 overall score and 105 Production score! I am so grateful, thank you Arno!

Beste from Turkey

Thank you so much for your versatile platform and valuable pieces of advice...Your platform has the right balance of free and paid features and is much more sophisticated.

Denis from Kazakhstan

Make your dreams come true

Join the thousands of others who are already making their dreams come true using Arno.

Create your free account

Quickly increase your Duolingo English Test score with the most complete course

Arno is trusted by students around the world

Why our course is the best way to get ready for the DET

Why our course is the best way to get ready for the DET

Instruction from the best

Self-paced course

Interactive exercises to help you master the material

PDF print outs

One-on-one tutoring

What students are saying about Arno

Make your dreams come true