
專項更強Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
專項更強Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
OETStudy 每月有 4,738 次造訪,月增率 +264.2%,定價模式為免費。ZeroGPT 每月有 32,864,541 次造訪,成長率 +19.7%,定價模式為免費增值、付費。

OETStudy is a free practice platform for the Duolingo English Test. It offers a large bank of exam-style questions, AI-powered scoring for speaking and writing tasks, CEFR vocabulary checks, and progress analytics to help learners target a higher score.
| 面向/指標 | ![]() | |
|---|---|---|
| 官方網域 | oetstudy.com | zerogpt.com |
| 定價模式 | 免費 | 免費增值、付費 |
| 每月造訪次數 | 4738 (4,738) | 3286.45萬 (32,864,541) |
| 月流量變化量 | +3437 (+264.2%) | +541.1萬 (+19.7%) |
| 主要市場與市佔 | 🇺🇸 美國 (100%) | 🇺🇸 美國 (43%) |
| 每月直接造訪 | 1537 | 822萬 |
| 使用者評分 | 4.4 | 3.8 |
| 支援平台 | 網站 | 網站 |

OETStudy is a free practice platform for the Duolingo English Test. It offers a large bank of exam-style questions, AI-powered scoring for speaking and writing tasks, CEFR vocabulary checks, and progress analytics to help learners target a higher score.
A large bank of DET-style items spanning speaking, writing, listening, and reading, graded by difficulty so you can practise at the level you need.
Speaking and writing submissions are scored automatically, evaluating pronunciation, fluency, grammar, and content structure with suggestions for improvement.
Check your vocabulary level against CEFR bands and build word lists clustered around the question types you practise most.
Practice statistics and score analysis highlight weak areas and show how your performance changes over time.
ZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.
Paste up to 15,000 characters or upload a file and get a highlighted breakdown of which sentences appear AI-written, plus an overall percentage score and a downloadable PDF report.
Beyond text, ZeroGPT offers an AI image detector and an AI video detector that performs frame-level analysis to flag generated or manipulated visuals.
Compare your text against billions of sources through the plagiarism checker, or rewrite and humanize AI text with the paraphraser and AI humanizer while keeping the original meaning.
A bundled writing suite covers summarization, grammar and spelling correction, translation across many languages, a dictionary, word and character counting, citation generation, and an AI email writer.

專項更強Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
專項更強Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
專項更強Popular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
專項更強Popular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.

專項更強Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
專項更強Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
結合了可靠的 AI 偵測與先進的文字真人化工具,能自然地改寫機器生成的內容。
免費練習 PTE Academic 與 PTE Core,口說寫作享 AI 評分
專為數位出版商打造的全方位內容完整性平台,主打精準的 AI 偵測與抄襲檢查。
Prep Edu is an online language-learning and exam-preparation platform combining structured IELTS, TOEIC and HSK courses with AI-powered practice. Its Prep AI Virtual Speaking Room and Virtual Writing Room simulate real exam conditions and return feedback on grammar, pronunciation, vocabulary, ideas and logic, while the Teacher Bee AI companion offers round-the-clock guidance. Learners get a personalised roadmap, mock tests, progress tracking and mobile access for studying at home.
Prep Edu is an online language-learning and exam-preparation platform combining structured IELTS, TOEIC and HSK courses with AI-powered practice. Its Prep AI Virtual Speaking Room and Virtual Writing Room simulate real exam conditions and return feedback on grammar, pronunciation, vocabulary, ideas and logic, while the Teacher Bee AI companion offers round-the-clock guidance. Learners get a personalised roadmap, mock tests, progress tracking and mobile access for studying at home.
支援多國語言的 AI 內容偵測平台,提供詳細的句子層級評分與寫作完整性工具。