Arno is the fastest way to prepare for the Duolingo English Test (DET), TOEFL iBT, PTE Academic, and IELTS.

350,000+ students trust Arno. Together they have answered over 38,000,000 practice questions.

BUILT FOR THE 2026 EXAM FORMAT
Arno is fully updated for the latest 2026 DET, TOEFL, PTE, and IELTS question types, scoring rubrics, and timing. Practice exactly what you will see on test day.

FREE & UNLIMITED PRACTICE
Practice every DET, TOEFL, PTE, and IELTS question type as much as you want. Practice questions are always free and unlimited. Your first mock test is also free.

ACCURATE SCORING AND INSTANT FEEDBACK
Arno scores your responses using the same guidelines as the real exams. Get instant feedback on grammar, vocabulary, pronunciation, and fluency to improve your scores fast.

REALISTIC FULL-LENGTH MOCK TESTS
Take timed mock tests that match the real exam. Get an estimated score the moment you finish, plus detailed feedback on every answer.

GUIDED COURSES
Structured courses for each exam. Short lectures paired with targeted practice, organized into clear units. Track your progress and pick up where you left off.

AI TUTOR THAT KNOWS YOUR WEAK SPOTS
Arno builds a personalized study plan around your target score, tracking your progress across reading, writing, listening, and speaking to give you the practice you need next.

VOCABULARY BUILDER
Master high-frequency words and phrases with spaced-repetition flashcards built for English proficiency exams.

TRUSTED WORLDWIDE
Arno's interface is translated into 30+ languages. Students from 200+ countries use Arno every day to make their study-abroad dreams come true.

DUOLINGO ENGLISH TEST (DET) PREP
Practice every DET question type for free. This includes Fill in the Blanks, Read and Complete, Read and Select, Listen and Type, Write About the Photo, Speak About the Photo, Speaking Sample, Writing Sample, Interactive Reading, Interactive Listening, Interactive Writing, and Interactive Speaking. Take a full DET mock test that matches the real test format. Get an estimated overall score and subscores as well as feedback on every response.

TOEFL iBT PREP
Practice for the new TOEFL iBT 2026 format. We cover all four sections and all question types. Reading (Academic Passage, Daily Life, and Complete the Words). Listening (Conversation, Announcement, Academic Talk, and Choose a Response). Speaking (Listen and Repeat and Take an Interview). Writing (Academic Writing, Write an Email, and Build a Sentence). Take full TOEFL iBT mock tests with the new adaptive format and 1-6 CEFR score scale.

PTE ACADEMIC PREP
Practice every PTE Academic question type. This includes Read Aloud, Repeat Sentence, Describe Image, Re-tell Lecture, Answer Short Question, Respond to Situation, Summarise Group Discussion, Summarise Written Text, Write Essay, Fill in the Blanks, Multiple Choice (Multiple Answers), Multiple Choice (Single Answer), Reorder Paragraphs, Summarise Spoken Text, Highlight Correct Summary, Select Missing Word, Highlight Incorrect Words, Write From Dictation. Take full PTE mock tests and get a clear score breakdown for each section.

IELTS PREP
Practice every IELTS Academic question type. Listening (Multiple Choice, Matching, Plan/Map/Diagram Labelling, Form and Note Completion, Sentence Completion, and Short Answer). Reading (Multiple Choice, True/False/Not Given, Yes/No/Not Given, Matching Headings, Matching Information, Matching Features, Sentence Completion, Summary Completion, and Short Answer). Writing (Task 1 report and Task 2 essay). Speaking (Part 1 Interview, Part 2 Long Turn, and Part 3 Discussion). Take full IELTS mock tests and get an estimated band score for each section plus an overall band.

WHAT IS FREE AND WHAT IS PAID
Practice questions are always free and unlimited. Your first mock test is free. To unlock more mock tests, AI scoring on every answer, personalized study plans, and the 24/7 AI tutor, upgrade to a paid plan.