
Your AI-powered research, note-taking, and knowledge assistant.

The smarter way to build products.
NotebookLM: Your AI-powered research, note-taking, and knowledge assistant.. Userlens: The smarter way to build products.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. NotebookLM is freemium and Userlens is freemium.
The best choice between NotebookLM and Userlens depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
NotebookLM is primarily designed for individuals, while Userlens is built for individuals.
NotebookLM offers: Multi-source AI grounding (PDFs, Docs, YouTube, audio), AI-powered Summaries, Reports & Quizzes, Audio & Video Overviews with AI narration, Interactive Mind Maps & Visualizations. Userlens offers: Session Replays, Heatmaps, Funnel Analysis, User Journey Maps.
Based on our data, NotebookLM currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.