DET Practice revolutionizes test preparation by combining AI-powered adaptive learning with the exact format of the Duolingo English Test. The platform's core functionality revolves around four key test components: interactive reading comprehension exercises, speech recognition for speaking practice, audio-based listening challenges, and AI-graded writing prompts. Each practice session dynamically adjusts difficulty based on user performance, ensuring optimal challenge levels. The proprietary scoring algorithm evaluates responses across 12 linguistic dimensions including lexical diversity, grammatical accuracy, and phonological fluency. Users receive comprehensive feedback reports after each attempt, highlighting both immediate corrections and long-term improvement areas. The system maintains detailed progress dashboards that visualize performance trends across test sections, enabling targeted study planning. Unique among test prep tools, DET Practice incorporates natural language processing to simulate actual test conditions, including timed sections and adaptive question sequencing. Additional features include a 10,000+ question bank categorized by difficulty, weekly mock tests with percentile rankings, and mobile-compatible micro-practice sessions. The platform supports multiple learning modes: tutorial mode with step-by-step guidance, exam simulation mode, and focus mode for specific skill development. Institutional users benefit from classroom management tools and group analytics, while individual learners can access premium one-on-one AI tutoring sessions. All content aligns with the latest DET test specifications and undergoes monthly updates based on test-taker performance data.