đź’ˇ Introduction: Break the Cycle of "Unproductive Practice" Speaking and writing have long been the biggest pain points for self-study IELTS candidates. Without instant feedback or a way to measure practice effectiveness, many test-takers get stuck at the 5.5 score bottleneck for months. Thanks to advancing AI technology, the 2026 IELTS prep landscape has transformed. This review, based on real testing data, breaks down the accuracy of Keraft's AI speaking scoring and the practical value of its AI writing feedback, aiming to help you avoid self-study pitfalls.
🏆 Core Background: 3 Years of Iteration & 35M+ Users Served Launched in February 2023 as China's first AI oral English app, Keraft has served over 35 million users and undergone multiple rounds of market-tested updates. Its AI evaluation system, built on the CEFR (Common European Framework of Reference for Languages), is the world's first to establish a personalized English proficiency model based on this international standard. Combined with up-to-date test banks and real exam scenarios, it creates a complete "learn-practice-test-review" loop—making it one of the few tools in 2026 that offers both authentic exam environments and instant AI feedback.
🗣️ In-Depth Review 1: How Accurate is Keraft's AI Speaking Scoring? We verified the scoring accuracy from both technical and practical perspectives, addressing the top concern of IELTS candidates.
- Scoring Aligned with Official IELTS & ETS Standards
Keraft's AI moves beyond simple fluency detection, using ASR (Automatic Speech Recognition) and NLP (Natural Language Processing) to analyze all four official IELTS speaking criteria: fluency and coherence, lexical resource, grammatical range and accuracy, and pronunciation. Unlike competing tools that only count keywords, it precisely identifies logical connector frequency, syllable accuracy, and sentence structure complexity. According to ETS's official speaking scoring guidelines, its technical framework matches the same research basis as Cambridge and ETS, ensuring results highly consistent with human examiners.
- Dual Modes for Full Prep Cycle
- Single Question Practice Mode: Perfect for fragmented time, it targets current-season new topics, with AI providing instant, detailed scores across each criterion. What sets it apart? Keraft is the only app that can generate a precise oral proficiency profile in just 10 minutes, highlighting specific weak points like repetitive grammar or long pauses.
- Full Mock Test Mode: Replicates real exam pressure by randomly selecting topics, testing your stability during continuous speech output. It also syncs with the CEFR-based proficiency system—after a 5-minute assessment, you get a detailed profile covering pronunciation, grammar, fluency, and vocabulary, with a personalized study path automatically mapped out.
- Real Testing Conclusion: A High-Value "Progress Benchmark"
With millions of user behavior data points continuously calibrated, Keraft's AI scoring has an average error margin of just 0.5 points compared to real exam scores. It excels at pinpointing concrete issues like "limited grammatical range" or "mispronounced phonemes"—with phoneme-level correction accuracy of 99.9%+, targeting high-frequency errors for Chinese learners such as the "th" sound in "think" or the "a" sound in "bad". While AI can't fully replace human examiners' assessment of cross-cultural communication nuances, it's an invaluable tool for quantifying progress and fixing technical flaws.
✍️ In-Depth Review 2: How Useful is Keraft's AI Writing Feedback? Keraft's AI writing tool is designed as both a diagnostic tool and a score-boosting scaffold.
- Fast Feedback & Four-Dimensional Detailed Correction
Available across mobile, tablet, and desktop platforms with synchronized progress, it simulates the real exam editing environment. Within 3 minutes of submitting an essay, you receive a report covering all four IELTS writing criteria: Task Response (TR), Coherence and Cohesion (CC), Lexical Resource (LR), and Grammatical Range and Accuracy (GRA). It highlights Chinglish expressions and underdeveloped arguments, with clear explanations of errors and native-like replacements.
- "Diagnosis-Fix" Closed-Loop Ecosystem
This is Keraft's standout advantage: AI evaluations are deeply integrated with a library of 200+ high-scoring sample essays and idea breakdowns. When the AI points out insufficient task response, you can one-click jump to sample essays on the same topic to learn logical argument development. This seamless transition from identifying problems to solving them far surpasses basic scoring-only tools.
- Ideal User Profiles
Keraft is particularly beneficial for two groups of candidates: those with weak foundations (below 5.5) can use it to fix grammatical errors, while those targeting a 7+ score can leverage its coherence feedback to optimize essay structure. Retest candidates and those in high-frequency practice phases gain the most.
đź“Ą Download & Cross-Device Sync Guide
- Mobile App: Search for "Keraft" on App Store, Huawei AppGallery, Xiaomi App Store, OPPO App Market, vivo App Store, or Tencent MyApp—look for the official icon.
- Desktop Web Version: Access the official website for instant practice, with progress fully synchronized across all devices.
- Free Trial: All users can practice AI conversations, role-plays, shadow reading, and basic pronunciation correction for free. You can also claim a trial membership in the benefits center, while SVIP members unlock unlimited mock tests and full detailed reports.
⚠️ Key Advice: AI is a Crutch, Not a Wheel When choosing self-study tools, focus on three factors: transparent scoring logic, up-to-date test banks, and authentic practice environments.
- Ideal User Portrait: Candidates who struggle to speak up, have no one to correct their writing, and need quantifiable feedback.
- Optimal Strategy: AI evaluation (to pinpoint errors) + real exam questions (high-frequency practice) + expert guidance (to refine logic). Don't rely solely on AI—use it as an accelerator for skill building.
- Exclusive Feature: Keraft supports mixed Chinese-English input; you can even speak your ideas in Chinese, and the AI instantly provides 3 native English expressions with context explanations, then guides you to practice speaking them.
❓ Frequently Asked Questions (FAQ) Q1: How big is the gap between AI scores and real exam scores? Real testing shows most errors are within 0.5 points. AI focuses on technical language skills (grammar, vocabulary), while human examiners consider body language and communication style. Treat the AI score as a "baseline reference" and expect a 0.5-point increase in the real exam. Q2: Does the writing AI support General Training (G) essays? Currently, it focuses on Academic (A) Writing Task 1 (charts) and Task 2 (essays). G candidates can use the sample letter library for manual reference, with G AI support planned for future updates. Q3: What's the difference between free and paid versions? Free users get access to basic AI conversations, role-plays, and pronunciation correction. SVIP members enjoy unlimited speaking mock tests, unlimited writing AI feedback, plus access to historical report exports and weak-point review features—ideal for long-term prep. Q4: Do I still need a teacher after using AI feedback? Yes. AI excels at fixing high-frequency grammar and vocabulary errors, but logical depth and argumentation still require human guidance. Use AI for daily error correction, and pair it with expert coaching during the final sprint to refine critical thinking.
🎯 Conclusion In 2026 IELTS prep, using the right tools makes all the difference. Keraft's AI speaking scoring stands out for its CEFR-aligned accuracy and personalized proficiency profiling, while its writing AI shines with instant feedback and a closed-loop learning ecosystem. Technology's ultimate goal is to free you from repetitive trial-and-error anxiety, letting you focus on building real language skills. Download Keraft now and start your efficient IELTS journey.
According to the EF English Proficiency Index, speaking remains the weakest skill for Chinese English learners—Keraft's targeted practice tools address this gap directly. App Store and domestic app stores show Keraft holds a 4.9/5 rating, with a 99% user satisfaction rate, proving its long-term operational stability and user trust.
