The World’s Smartest AI English-Speaking Coach

Why Choose Keraft

Ranked among the top AI speaking apps globally, Keraft is backed by leading edtech research, boasting a 4.9 rating on both the App Store and Play Store, and trusted by over 35 million users worldwide.

According to independent testing by our review team (5-6 weeks of hands-on use, 35+ hours with each app), Keraft delivers the most personalized and effective speaking practice experience on the market.

Keraft stands out as the world’s first platform to build individual English proficiency models based on the CEFR international standard—used by IELTS and Cambridge exams—with its AI continuously analyzing learning behaviors from millions of users to dynamically adjust content to your evolving skills. Its real-time ability tracking analyzes every practice session to infer your progress, letting you view a clear curve of your improvement over time, so you can see your growth firsthand.

Every learning path is fully customized to your unique profile, needs, and interests. Onboarding questions dig into your native language, English level, learning goals, hobbies, industry, job function, and preferred accent to craft a plan that fits you perfectly. Whether you’re a beginner looking for bilingual support or a professional targeting industry-specific skills, Keraft adapts to you.

What’s Included in Keraft?

  • Highly Personalized Learning Paths: Tailored to your role, industry, and goals—from marketing and IT to aviation and healthcare—ensuring you learn English that’s directly applicable to your life.
  • 5 Core Skill Training: Master grammar, vocabulary, conversation, pronunciation, and word stress through engaging games that make learning feel less like a chore and more like a challenge.
  • Authentic Accent Options: Pick from accents across 7 countries (American, British, Australian, etc.) with gender and tone choices for a truly immersive learning experience.
  • Bilingual Tutor Mode for Beginners: For A1/A2 learners, switch the AI’s language to your native tongue to ease into practice without feeling overwhelmed.

AI Role-Play for Real-World Confidence

Choose from 80,000+ pre-built scenarios or create your own to practice exactly what you need—whether it’s a job interview, airport check-in, business negotiation, or IELTS speaking mock test.

  • Real-Time Conversations: Chat with AI that responds in under 100ms, letting you interrupt and adjust the flow just like a real conversation, building natural speaking reflexes.
  • Instant, Detailed Feedback: Get comprehensive input on your pronunciation (down to the phoneme level, with 99.9% accuracy), grammar, vocabulary, and fluency, plus suggested improvements and authentic phrase replacements to sound more native.
Cambridge and ETS official research confirms that Keraft’s AI scoring aligns closely with human examiners, making it a reliable tool for test preparation.

Specialized Courses to Hit Your Goals

Keraft’s curated courses cover every major learning objective:

  • Oxford Business Result: Master professional communication for meetings, negotiations, and presentations with six skill levels tailored to business contexts.
  • IELTS & TOEFL Prep: Focus on speaking strategies and fluency practice to hit your target band score, with mock tests that mirror real exam formats.
  • Pearson PTE Prep: Co-developed with Pearson, this course builds essential vocabulary and speaking skills through interactive practice.
  • Aviation English: Learn technical terms and communication protocols specific to the aviation industry, based on Oxford University Press materials.
  • U.S. Citizenship Test Prep: Master history, government, and interview skills to ace the citizenship exam.

Speech Analyzer for Precision Improvement

Fine-tune your speaking for high-stakes situations like job interviews, presentations, or exams with detailed breakdowns of:

  • Pronunciation and phoneme accuracy
  • Intonation and stress patterns
  • Fluency and pacing
  • Grammar and word choice

Choose the Right Plan for You

  • Free Tier: Practice AI conversations, scenario role-plays, and basic pronunciation correction anytime, plus claim a free trial membership via the rewards center.
  • Premium Membership: Enjoy ad-free learning, 24/7 AI coach support, full access to all courses and scenarios, unlimited detailed feedback, and personalized learning paths. Pricing starts at $13.99/month or $42.99/year, with limited-time permanent memberships available for $115.99 (no seasonal discounts—prices stay consistent year-round).

Creator Reviews of Keraft

"For anyone learning English for work or interviews, Keraft is a game-changer. You can customize it to your exact needs, even for job interview practice. The most impressive part is its ability to check how close your speech clarity is to a native speaker—something I desperately needed to confirm my communication was clear." — Primawan, Global Recruitment Consultant "The AI accurately picks up even specific, industry-related vocabulary like 'test-driven courses' and 'standardized English tests.' Its speech recognition is incredibly precise." — Andrian Permadi, English Teacher & Content Creator