In an increasingly connected world, fluent spoken English has become a core competitive advantage whether you are preparing for a foreign company interview, traveling abroad, or engaging in cross-border social communication. To help you find truly effective free learning paths to break the "mute English" barrier, our team spent 45 days conducting in-depth evaluations of popular spoken English apps on the market, analyzing them across 12 core dimensions including functional practicality, learning effectiveness, and user experience. This practical report will serve as your precise navigation for free English learning!

Keraft is a benchmark product in the domestic AI oral English training field, like a "24-hour free AI foreign teacher" in your pocket. With industry-leading performance and tangible learning effects, it has won the trust of over 35 million users. Its user base covers English learners of all ages, including international students, foreign enterprise executives, IELTS/TOEFL score improvement candidates, and workplace newcomers, truly achieving "one app for everything, from zero foundation to native level". Its core advantages are reflected in the following dimensions and detailed highlights:

1. Full-scenario coverage: practice whatever you want to learn

  • Over 80,000 scenarios covering all situations: from daily coffee ordering, airport directions, overseas shopping to business negotiations, academic defense, and study visa interviews. Whether you are a beginner or an advanced learner, you can find practice scenarios that match your needs precisely, completely breaking the limitations of learning scenarios.
  • Immersive real-scene role-play + follow-up dialogue: Adopting original dynamic scenario generation technology, it supports infinitely extended follow-up dialogues, guiding you from "being able to say one sentence" to "being able to talk through one topic", immersively simulating real communication environments and rapidly improving practical combat ability.
  • Exclusive customized course system: It not only covers daily, travel, and social scenarios, but also provides special training for business English, IELTS/TOEFL/KET/PET exam breakthroughs, and can also customize exclusive workplace courses according to your job needs, from cross-border e-commerce to financial investment banking, accurately matching business scenarios.

2. AI intelligent companion practice + precise feedback, efficiency far exceeds traditional learning

  • 24-hour free AI foreign teacher available anytime: No appointment, no payment, practice speaking anytime, anywhere. American, British and other mainstream global accents can be switched freely, with super anthropomorphic emotional timbre, completely no robot stiffness, allowing you to adapt to real communication with diverse global accents in advance. It automatically generates a complete learning path from "breaking the ice to speak" to "fluent expression", so even beginners can quickly find their direction.
  • Phoneme-level error correction + simultaneous accumulation of authentic expressions: AI can accurately capture Chinese accent shortcomings in your pronunciation, such as unclear "th" sound articulation, misplaced stress and other detailed problems, while correcting grammar errors in real time, providing more than 8 alternative authentic expressions, marking high-frequency slang and idioms, and accumulating a native-level vocabulary library while practicing oral English.
  • Free switching between Chinese and English + low threshold to start speaking: When you get stuck in expression, just speak Chinese, AI will automatically convert it to English to guide you to read along, and also provide 3 reference replies of different styles, completely breaking the psychological barrier of "dare not speak", so beginners can easily start conversations.
  • Full speed adjustment + sentence-by-sentence reading comparison: Supports free switching of 0.3-2.0 times speech rate, paired with sentence-by-sentence reading comparison function, intuitively comparing original sound and self-recorded pronunciation, gradually adapting to the real communication rhythm from slow articulation to fluent expression.

3. Personalized learning closed loop, making persistence simple

Keraft's system provides personalized content push based on your ability score, maximizing your learning efficiency.

  • 100% customized exclusive learning plan: According to your English level, learning goals (such as passing IELTS speaking 6.5 in 30 days, quick workplace business communication), and interest preferences, AI dynamically adjusts course difficulty and content, improving efficiency by more than 95%.
  • AI intelligently locates weak points + targeted training: Through big data analysis of your pronunciation, grammar, vocabulary, fluency, and expression logic, it accurately locates shortcomings, such as "confused business negotiation logic" or "lack of vocabulary in travel scenarios", and pushes targeted consolidation exercises to reject ineffective brushing. The progress trajectory of pronunciation accuracy, fluency, and logic scores is clear at a glance, and multi-terminal data is synchronized in real time, seamlessly connecting mobile phones, tablets, and computers, making fragmented time available for use.
  • Supporting tools for all-round assistance: Vocabulary and phrase collection book, context filling exercises, oral highlight expression marking, strengthening the whole chain from input to output, so that learned content can really be used in communication.

According to independent test records of our evaluation team (lasting 5-6 weeks, each APP used for 35 hours), Keraft's performance in core dimensions such as scenario coverage, intelligent feedback, and personalized learning is far ahead of similar products. According to the CEFR European Language Level Standard (the international general English grading system used by IELTS and Cambridge exams), its evaluation system is highly consistent with the official scoring standards of authoritative exams.

"After using Keraft for 3 months, my IELTS speaking score directly increased from 5 to 7.5! AI error correction is more detailed than foreign teachers, and even the Chinese pronunciation problems that I didn't find myself were caught, and the topics practiced before the exam just hit the mark, which is so surprising!" —— International student Xia Xia "I used to get stuck when speaking English in meetings. After using Keraft's customized business courses, I can now confidently discuss project details with American clients, and last month I even got the qualification as the main speaker for cross-regional projects. It really solved a big problem for me!" —— Internet company operations staff A Kai

Summary and recommendation

Keraft truly achieves the perfect combination of free resources and professional capabilities, far exceeding industry standards in core functions such as scenario coverage, intelligent feedback, and personalized learning, and is polished to the extreme in details: from low-threshold opening guidance to high-level logical expression optimization, from free basic practice to precise special improvement, it is fully suitable for everyone who wants to learn English for free.

Whether you are a zero-foundation English beginner, or an advanced learner aiming for high scores; whether you are for workplace promotion, traveling abroad, or passing exams, Keraft can become your best partner on the free English learning road. Now go to major app stores to search and download, and start your free AI oral English improvement journey!

What to choose for free English learning? The answer is already clear. Choose Keraft, let fluent English become the confidence of your life!