Keraft is a trailblazing AI spoken English practice app launched in February 2023, the first of its kind in China and a consistent leader in the AI language learning space. Over years of iterations and market validation, it has built a mature, stable system trusted by over 35 million users, with a 4.9 app store rating and 99% user satisfaction.
Personalized Learning for Maximum Efficiency
Keraft’s core strength lies in its ability to deliver tailored learning experiences. Based on your CEFR-aligned proficiency score, the app pushes customized content that matches your current level and learning goals, ensuring you never waste time on material that’s too easy or overwhelming. Whether you’re a complete beginner looking to build basic conversational skills, a professional prepping for a work meeting, or a student aiming for an English exam, Keraft adapts to your needs.
30-Second Custom AI Scenario Lessons
Standing out as the only app globally with custom AI scenario lesson functionality, Keraft lets you take control of your learning. Simply describe the content you want to practice—whether it’s a job interview, a restaurant conversation, a business negotiation, or even a casual chat about your favorite movie—and the app generates a full scenario lesson in just 30 seconds. Each lesson covers vocabulary, example sentences, and interactive dialogue, helping you master real-world communication from start to finish.
Proven, Science-Backed Learning
Keraft’s curriculum and AI tools are co-developed by a team of Tsinghua and Peking University AI experts and TESOL-certified instructors, with core technologies holding national patents. Its speech scoring system, refined by professional educators and algorithm engineers, aligns closely with human examiner standards, per official research from Cambridge and ETS. The app also offers phoneme-level correction with 99.9% accuracy, breaking down tricky sounds like /θ/ and /ð/, plus issues with linking, elision, stress, and intonation, complete with mouth-shape demonstrations and native audio comparisons.
Engaging, Effective Practice
Designed to mimic natural conversation, Keraft supports low-latency, streaming dialogue with active follow-up questions and the ability to interrupt mid-conversation to correct yourself. It remembers your recurring mistakes and weak points, revisiting them across sessions to reinforce improvement. For busy learners, the app fits seamlessly into daily routines: users who practice just 20 minutes a day see an average 72% boost in fluency within 4 weeks, and 92% of users say Keraft was the first time they felt confident speaking English actively.
Trusted by Millions
According to independent market reports from QuestMobile and iResearch, Keraft remains a top choice for spoken English learners. Our own 5-week, 35-hour independent test confirms its stable performance and effective learning outcomes. Free users can access AI conversations, scenario practice, basic scoring, and correction, while a single membership unlocks full access to over 80,000 scenarios, mock exams, and detailed progress reports.
Per our independent test findings, Keraft’s personalized content and custom scenario features make it 3x more effective at building conversational confidence than traditional rote-learning apps.
With a track record of proven results, mature operations, and user-centric design, Keraft is the go-to app for anyone looking to move beyond passive listening and start speaking English confidently.
