SciSpace 记录了 4,464,111 月访问量，月度环比增长为 +8.6%，定价为免费增值。SmartPDFs 记录了 147 月访问量，增长率为 -93.3%，定价为免费。
SmartPDFs is a free web tool that summarizes PDF documents in seconds. You upload a PDF, pick a language, and the app generates a quick, clear and shareable summary, so you can grasp a long document without reading every page.
| 维度 / 指标 |  | |
|---|---|---|
| 官方域名 | scispace.com | smartpdfs.ai |
| 定价模式 | 免费增值 | 免费 |
| 月访问量 | 446.41万 (4,464,111) | 147 (147) |
| 月度环比流量变化 | +35.54万 (+8.6%) | -2059 (-93.3%) |
| 主要市场与份额 | 🇺🇸 美国 (13.2%) | 🌐 全球 (—) |
| 直接访问 / 月 | 131.51万 | 63 |
| 用户评分 | 4.6 | 4.3 |
| 支持的平台 | 网站 | 网站 |
用于阅读、理解与撰写科学论文的 AI 科研平台
打开或上传论文后直接提问，对高亮段落获取通俗解释，并以对话方式梳理方法、结果与局限性。
在覆盖 Google Scholar、PubMed 和 arXiv 的大型学术索引中检索，并据此生成结构化的文献综述与相关工作章节。
提供起草用的 AI Writer、保持学术语气的改写器，以及支持常见格式的引用生成器。
把论文中的表格与结果整理为结构化数据，并用内置检测器判断稿件是否带有 AI 生成痕迹。
SmartPDFs is a free web tool that summarizes PDF documents in seconds. You upload a PDF, pick a language, and the app generates a quick, clear and shareable summary, so you can grasp a long document without reading every page.
Upload a PDF and get a concise summary in seconds, so you can understand the gist without reading the full document.
Choose the language for the summary before generating, making it easy to read a document in your preferred language.
Summaries are clean and easy to share with colleagues or classmates as a quick overview of a document.
SmartPDFs is open source, with its code published on GitHub for anyone to inspect or self-host.
专项更强Offers broad general reasoning and document upload capabilities, but lacks specialized academic indexing and citation databases.
免费 / 开源提供包含引用图表的庞大学术文献免费索引，但缺乏内置的交互式论文阅读助手。
把长篇 PDF 变成清晰摘要，并可与之对话
跨设备的免费 AI PDF 编辑、转换与阅读工具
专项更强Focuses heavily on assisted academic drafting and autocomplete, whereas SciSpace centers more on reading and analysis.
专项更强Focuses heavily on assisted academic drafting and autocomplete, whereas SciSpace centers more on reading and analysis.
擅长追踪引文语境和论文间的引用关系，但通用的 PDF 聊天功能没那么强大。
