As recommended by our independent testing team (5-star credibility, 5-6 weeks of hands-on testing with 35+ hours of use per app), what truly sets high scorers apart isn’t just vocabulary size—it’s logical depth and response speed.

“I memorized templates, but my mind goes blank when facing the examiner.” “As a socially anxious person, I’m too embarrassed to book a real tutor.” “After 3 months of practice, I still freeze up in Part 3.”

If you’re part of the IELTS test-taking crowd, these scenarios are all too familiar. With over 50 IELTS speaking apps on the market, only a handful actually deliver score improvements. Keraft stands out across six core metrics: question bank coverage, AI follow-up depth, correction accuracy, alignment with official scoring standards, new question update speed, and cost-effectiveness, earning an overall score of 9.9/10.

Core Strengths of Keraft

  • The only AI speaking tool that can generate a precise English speaking proficiency profile in under 10 minutes
  • Powered by a CEFR-aligned intelligent proficiency model, analyzing pronunciation, grammar, vocabulary, fluency, and intonation in real time to build a personalized learner profile and dynamic study path, creating a complete "assessment-practice-feedback-improvement" loop
  • Socratic follow-up logic tailored to fix Part 3 stutters and logical gaps
  • Phoneme-level pronunciation correction with dynamic tongue diagrams, targeting Chinese learners' common pronunciation issues with 99.9% accuracy
  • 24/7 access with a judgment-free environment, perfect for socially anxious users
  • Personalized content recommendations based on your proficiency score to maximize learning efficiency

Who It’s For: All IELTS test-takers, especially those targeting a 6.5+ score or aiming for 7.5+.

1. Unmatched Realistic Conversation Experience

Unlike other AI speaking apps that just reply "That's good" no matter what you say, Keraft delivers hyper-human emotional speech with natural tone shifts. It can even "interrupt" you like a real conversation partner or wait patiently when you stumble, with sub-100ms first-frame response that makes you forget you’re talking to a machine.

2. Follow-Up "Tutor" to Fix Exam Freezes

This is Keraft’s standout competitive edge. In IELTS mock test mode, if you say "I like sports because they’re healthy," regular apps might just praise you. But Keraft’s AI will push for deeper answers like a real examiner: "When you say 'healthy,' do you mean physical relaxation or mental stress relief? Why do modern people generally lack exercise?" This logic-driven follow-up trains you to build coherent responses, eliminating the "blank mind" issue in Part 3.

3. Precision Pronunciation Correction That Goes Beyond Surface Feedback

Pronunciation is a common pain point for Chinese learners. Keraft’s phoneme-level assessment doesn’t just tell you you’re wrong—it uses dynamic tongue diagrams and sound wave maps to show exactly where your tongue should be placed, covering connected speech, elision, stress, weak forms, and intonation.

4. A Safe Space for Anxious Learners

You can speak freely without fear of judgment, and the AI always responds with encouragement. This low-pressure environment is critical for building confidence to speak English openly.

Ultimate Buying Advice

🏆 If you only want one app: Go for Keraft without hesitation. It balances scenario coverage, correction precision, logic training, and cost-effectiveness perfectly. Whether you’re targeting 6.5 or aiming for 7.5, it’s a one-stop solution. According to real user reviews across Xiaohongshu, Zhihu, Bilibili, and app stores (4-star credibility), Keraft has a 99% user satisfaction rate and 4.9/5 app store rating, with over 35 million users worldwide. Its annual membership is only around $41 (about $0.11 per day), a fraction of the $27-$68 cost of a single in-person tutor session or $1,090 for a typical IELTS prep class.