Jhonatan G.
Big tool for DET studies
I was looking for this type of site to improve my skills to do a DET and I found Arno, wich is a big tool to study and connect you with a DET.
Response from ArnoMar 27, 2026
Thank you very much!

The 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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Jhonatan G.
I was looking for this type of site to improve my skills to do a DET and I found Arno, wich is a big tool to study and connect you with a DET.
Response from ArnoMar 27, 2026
Thank you very much!
Nutritionist M.
Arno really helped me improve my level, especially in understanding question strategies and managing time better. They also provide a study plan tailored to my weak points, which is very focused and effective for achieving real progress. The techniques are practical and easy to apply, and I noticed clear improvement in my performance.
Response from ArnoMar 27, 2026
Hello! We're so glad to hear that you found our Personalized Study Plan feature so valuable :)
Maliha T.
I practiced on Arno, and the mock tests on Arno Duolingo helped me a lot in my preparation.
Response from ArnoMar 27, 2026
Hi Maliha! It's great to hear that you found our mock tests so helpful :)
Atila Y.
Every thing was great. The reading tests might need to be more close to the real ones in DET.
Response from ArnoMar 27, 2026
Hello! Thank you for that feedback.
Towkir
Arno is the greatest AI for Duolingo as far as I saw in my whole lifespan and discussing with my many university batchmates even teachers. It's just astonishing to see the individual score rating in each practise I do .It not only guide you through your real score that you are dreaming but also guarantee you to get close enough to grab you dreaming star in your hand. It provides mind-blowing feature which you can never doubt about your outcomes in real exam. Hope this review get published world so can people can achieve their desired score in few days ,I would say in a faster way.
Response from ArnoMar 27, 2026
Wow, thank you so much for such a positive review! We're glad that you found our accurate and detailed scoring so helpful -- we have worked very hard on that.
Sinan
I really enjoyed using Arno for my journey. The interactive questions made it very fun and easy to stay consistent every day. It is a great app for anyone who wants to practice in an engaging way.
Response from ArnoMar 27, 2026
Thank you, Sinan!
Louis L.
It helps me improve my English skills for DET. I learned various problems and ways of thinking in English. I’d recommend this platform to anyone preparing for an English test.
Response from ArnoMar 27, 2026
Thank you very much, Louis!
Hwajin L.
This AI program is the best English learning tool ever. Based on your level, it offers the best way to improve your skills for DET scores.
Response from ArnoMar 27, 2026
Thank you so much! :)