About
Arno is the leading AI-powered platform for preparing for major English proficiency exams including the Duolingo English Test (DET), PTE Academic, and TOEFL iBT. Fully updated for 2026 exam formats, Arno combines advanced AI technology with expert test-prep methodology to help students identify weaknesses and improve scores faster than any other platform. At its core, Arno provides free and unlimited practice across every question type found on supported exams, closely matching the format and difficulty of the real tests. Its AI scoring engine is trained on official test scoring rubrics, delivering instant and accurate scores alongside detailed feedback after every attempt. Students can also take full-length mock tests that simulate the actual exam environment and receive comprehensive score reports. Arno's personalized study plans analyze each student's performance over time and generate a daily schedule targeting their weakest areas. An integrated AI tutor offers on-demand guidance on test strategies, scoring criteria, and improvement recommendations. A built-in vocabulary builder with 5,000+ test-specific words uses spaced repetition to maximize retention. Available on web, iOS, and Android, Arno is free to start with no credit card required, making professional-grade test prep accessible to anyone. It is ideal for international students applying to universities, professionals seeking visa qualifications, or anyone needing a recognized English proficiency certification.
Key Features
- Free & Unlimited Practice: Practice every question type as many times as needed across DET, PTE, and TOEFL with questions that closely match official exam formats and difficulty levels.
- Accurate AI Scoring: Receive instant scores and detailed feedback powered by AI models trained on real test scoring rubrics, giving you a reliable gauge of your readiness before test day.
- Full-Length Mock Tests: Simulate the complete exam experience with full mock tests for each supported exam, accompanied by detailed score reports and per-answer feedback.
- Personalized Study Plans: Arno analyzes your performance over time and generates a tailored daily study plan focused on your specific weaknesses to maximize score improvement efficiency.
- Vocabulary Builder: Learn 5,000+ test-specific vocabulary words through interactive exercises and spaced repetition, carefully curated to boost performance on your chosen exam.
Use Cases
- An international student applying to a U.S. university uses Arno to prepare for the Duolingo English Test on a tight budget, completing daily AI-scored practice sessions without any upfront cost.
- A professional seeking a skilled worker visa practices for PTE Academic using Arno's full mock tests and personalized study plan to hit the required band score.
- A self-study learner preparing for TOEFL iBT uses Arno's AI tutor to get tailored strategy advice and improve weak areas like integrated writing.
- A language teacher recommends Arno to multiple students preparing for different exams, leveraging its multi-test coverage and free access as a classroom supplement.
- A student expanding their English vocabulary for the DET uses Arno's spaced-repetition vocabulary builder to systematically learn 5,000+ test-relevant words.
Pros
- Truly Free to Start: No credit card is required to access unlimited practice, making high-quality test prep accessible to students of all financial backgrounds.
- Multi-Test Coverage: One platform covers DET, PTE Academic, and TOEFL iBT — students comparing exams or switching formats don't need a separate app.
- Up-to-Date for 2026 Formats: Content is fully updated for the latest 2026 exam formats, ensuring practice is always aligned with what students will face on test day.
- Large Trusted Community: With 350,000+ students, Arno has a proven track record of helping learners achieve their target scores across diverse backgrounds.
Cons
- Advanced Features Likely Paywalled: While practice is free, premium features such as detailed analytics, extra mock tests, or advanced AI tutor access may require a paid plan.
- Focused on English Proficiency Only: Arno is specialized exclusively for English language tests; students preparing for other standardized exams (GRE, GMAT, SAT) will need a different platform.
- No Offline Mode Confirmed: There is no clear indication of offline access, which may limit usability for students in regions with inconsistent internet connectivity.
Frequently Asked Questions
What tests does Arno support?
Arno currently supports three major English proficiency exams: the Duolingo English Test (DET), PTE Academic, and TOEFL iBT. All content is updated for the latest 2026 exam formats.
Is Arno really free to use?
Yes, Arno is free to start with no credit card required. It offers free and unlimited practice questions, AI scoring, and personalized study plans. Some advanced features may be available under a premium tier.
How accurate is Arno's AI scoring?
Arno's AI scoring models are trained on real test scoring rubrics for each supported exam, providing instant and accurate score estimates along with detailed feedback so you know exactly where you stand.
Can I practice speaking and writing on Arno?
Yes. Arno covers all question types for each exam, including speaking and writing sections, with AI-powered evaluation and feedback for each response.
Is Arno available on mobile?
Yes. Arno is available on the web, iOS (App Store), and Android (Google Play), allowing you to study across all your devices at any time.
