Grammarly 记录了 58,867,412 月访问量,月度环比增长为 -1.5%,定价为免费增值。Underleaf 记录了 222,941 月访问量,增长率为 -1.9%,定价为免费增值。
Underleaf is an AI LaTeX assistant that converts handwritten notes, photos, PDFs, Word files, and spreadsheets into clean, compilable LaTeX, and adds academic writing tools on top.
| 维度 / 指标 | ![]() | |
|---|---|---|
| 官方域名 | grammarly.com | underleaf.ai |
| 定价模式 | 免费增值 | 免费增值 |
| 月访问量 | 5886.74万 (58,867,412) | 22.29万 (222,941) |
| 月度环比流量变化 | -91.61万 (-1.5%) | -4251 (-1.9%) |
| 主要市场与份额 | 🇺🇸 美国 (51.9%) | 🇺🇸 美国 (19.7%) |
| 直接访问 / 月 | 2539.87万 | 2.69万 |
| 用户评分 | 4.4 | 4.5 |
| 支持的平台 | 网站 | 网站 |

提供实时语法纠错、语气校准、写作来源追踪与团队风格指南的跨平台 AI 写作助手。
在 Chrome、Safari、Firefox、Edge、Windows、Mac、Google Docs、MS Office 与移动键盘中原生运行,标出语法错误、重写绕口句子,并将语气转向自信、共情或高管口吻。
部署具上下文感知的 AI 智能体,预测目标受众会如何反应草稿、定位可信的支撑引文、按评分标准批改文章,并在 Pro 方案下每月使用最多 2,000 次提示生成草稿。
对照数十亿网页与学术数据库扫描文本以发现无意抄袭,识别 AI 生成的段落,并通过 Google Docs 与 Word 中的 Authorship 报告透明记录文档来源。
让 Pro 与 Enterprise 方案的团队能够固化公司术语、禁用过时行话、强制使用包容性语言、插入共享片段,并在行内显示公司内部定义。
Underleaf is an AI LaTeX assistant that converts handwritten notes, photos, PDFs, Word files, and spreadsheets into clean, compilable LaTeX, and adds academic writing tools on top.
Converts handwritten notes, photos and screenshots, scanned papers, Word documents, tables, and spreadsheets into LaTeX code that compiles rather than a rough approximation you must retype.
Uploads multi-page PDFs and lets you choose which pages to convert, returning one structured document with sections, numbered equations, tables, and figures in the right places.
Reads equations, matrices, integrals, and aligned derivations at a stated 98%+ accuracy, and can turn diagrams and plots into TikZ.
Drafts abstracts, summaries, and thesis statements; rewrites for clarity without losing your meaning; and looks up citations with BibTeX in the same place.
由 DeepSeek-V4 与 R1 驱动的高效开源权重与托管推理 AI,token 成本极低。
QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, plagiarism checks and AI content detection. It is widely used by students, writers and professionals.
QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, plagiarism checks and AI content detection. It is widely used by students, writers and professionals.
由 ChatGPT 驱动的 iPhone、iPad 与 Mac 语法、改写与翻译助手
由 ChatGPT 驱动的 iPhone、iPad 与 Mac 语法、改写与翻译助手
告别空白幻灯片的视觉叙事
Viinyx AI is an all-in-one AI browser extension sold through Gumroad as a one-time lifetime Premium purchase. It embeds multiple large language models into any website so you can write, rewrite, summarize and paint with AI from a sidebar or inline prompt, using your own provider API keys.
Viinyx AI is an all-in-one AI browser extension sold through Gumroad as a one-time lifetime Premium purchase. It embeds multiple large language models into any website so you can write, rewrite, summarize and paint with AI from a sidebar or inline prompt, using your own provider API keys.

Tencent Yuanbao is Tencent's consumer AI assistant, powered by its Hunyuan family of large models along with DeepSeek options. It combines chat, web-grounded Q&A, document analysis, image understanding and image generation in one place across web, mobile and desktop apps.
Tencent Yuanbao is Tencent's consumer AI assistant, powered by its Hunyuan family of large models along with DeepSeek options. It combines chat, web-grounded Q&A, document analysis, image understanding and image generation in one place across web, mobile and desktop apps.

Z.ai is the free web assistant from Zhipu AI, built on the GLM model family. It handles everyday chat and research, generates slide decks and documents, and can produce working code, web pages and apps from a single prompt, with a no-login guest mode for quick questions.
Z.ai is the free web assistant from Zhipu AI, built on the GLM model family. It handles everyday chat and research, generates slide decks and documents, and can produce working code, web pages and apps from a single prompt, with a no-login guest mode for quick questions.