
专项更强Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
专项更强Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
OETStudy 记录了 4,738 月访问量,月度环比增长为 +264.2%,定价为免费。ZeroGPT 记录了 32,864,541 月访问量,增长率为 +19.7%,定价为免费增值,付费。

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.
| 维度 / 指标 | ![]() | |
|---|---|---|
| 官方域名 | oetstudy.com | zerogpt.com |
| 定价模式 | 免费 | 免费增值,付费 |
| 月访问量 | 4738 (4,738) | 3286.45万 (32,864,541) |
| 月度环比流量变化 | +3437 (+264.2%) | +541.1万 (+19.7%) |
| 主要市场与份额 | 🇺🇸 美国 (100%) | 🇺🇸 美国 (43%) |
| 直接访问 / 月 | 1537 | 822万 |
| 用户评分 | 4.4 | 3.8 |
| 支持的平台 | 网站 | 网站 |

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.

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

专项更强Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
专项更强Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
结合了可靠的 AI 检测与先进的文字真人化工具,能自然地改写机器生成的内容。
免费练习 PTE Academic 与 PTE Core,口语写作享 AI 评分
专为数字出版商打造的全方位内容完整性平台,主打精准的 AI 检测与抄袭检查。
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.
支持多国语言的 AI 内容检测平台,提供详细的句子级别评分与写作完整性工具。