ArnoThe Fastest Way to Prepare for DET, PTE, and TOEFL. Arno is an AI-powered test preparation platform for students preparing for the Duolingo English Test (DET), Pearson Test of English (PTE) Academic, and TOEFL. Over 250,000 students across 200+ countries have used Arno to get the scores they need. Practice with Real Test-Format Questions Prepare for your English proficiency test with thousands of practice questions that mirror the actual exam format. Arno covers every question type for the DET, PTE, and TOEFL, and is always fully up-to-date with the latest changes to each test, including the recent TOEFL format overhaul. Practice as much as you want with unlimited reading and listening questions, and get AI-powered feedback on your writing and speaking responses with a paid plan. AI-Powered Writing and Speaking FeedbackGet instant, detailed feedback on your writing and speaking responses powered by advanced AI. Arno analyzes your grammar, vocabulary usage, sentence structure, and content quality, then provides personalized suggestions for improvement. Unlike other English test prep apps that only give you a score, Arno shows you exactly what to fix and how to improve. Every practice response is scored and evaluated so you can track your progress over time. Full-Length Mock Tests with Score PredictionsTake realistic, full-length mock tests that simulate the actual exam experience. Receive a predicted score immediately after completing your test so you know where you stand before test day. Arno's mock test scoring has been calibrated against thousands of real test results to provide accurate score predictions. Identify your strengths and weaknesses across all test sections and focus your study time where it matters most. Personalized Study PlansArno creates a customized study plan based on your target score, test date, available study time, and areas that need improvement. Your plan adapts as you practice, prioritizing the skills where you have the most room to grow.
Arno (goarno.io) has 170 customer reviews on Five Star Index, with an average rating of 4.8 out of 5.
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Babak M.
It have one bug in website version that, It not play voice of first part of interactive speaking section. but Other five part of that played as well. I want add to that, it is on mock test repeated more than two month
Response from ArnoOct 20, 2026
Hi Babak, thank you for taking the time leave a review and share that feedback. Our product team will investigate these issues and fix them shortly.
Azra Jaan B.
I personally inspire from the method and material which is really helpful to increase bands.
Response from ArnoOct 20, 2026
Thank you for kind words!
OZTURK/ILGAZ D.
I am using arno to improve my english and get my desired point on DET. The site is very useful
Response from ArnoOct 20, 2026
We're very glad to hear that!
Abdelrhman
after searching for a month on the best website to practice for toefl, I found arno.It is just the best free option there; the material is up to date. There may be one minor drawback which is the grading is a bit harsher than real. If you get 5 for example ,in the real exam you will get 5.5
Response from ArnoOct 20, 2026
We're so glad that you preferred Arno to other platforms. And thank you for that feedback about the grading. We will investigate that.
Ana Carolina A. C.
I am fully satisfied with the platform because I constantly feel that material was made especially to my situation, and also I do not waste time reviewing and overlooking repeated materials.
Response from ArnoOct 21, 2026
Thank you for the review! We're glad that you found Arno so helpful :)
Juan Jose Salmon B.
This is a very useful learning platform, and it is highly recommended for students of various ages.
Response from ArnoOct 21, 2026
Thank you so much!
Felipe Toledo I.
I've used Arno to prepare for my upcoming TOEFL test, and It's exactly what I was looking for. Thanks for the great work!
Response from ArnoOct 2, 2026
Thank you, Felipe!
Дарья Т.
I paid for a monthly subscription to Dualingo, and for a week I kept getting an error message saying the microphone wasn't working, even though it worked perfectly. I sent a third email, and a week later, there was no response. The test finally worked, but no one responded to my emails, nor did they renew my subscription due to the lost days.
Response from ArnoSep 23, 2026
I'm Otto, one of Arno's co-founders. I'm very sorry about your negative experience. Can you please send an email to me at [email protected] so that I can be sure we make the situation right? I would be happy to give you a refund or extend your plan to make up for the lost days.
