Mem review covering AI note-taking, automatic organization, Mem Chat, Mem Agent, pricing plans, pros, cons, and alternatives like Notion and Obsidian.
Mem is an AI-native note-taking and personal knowledge management app founded in 2021 by Kevin Moody and Dennis Xu. Rather than relying on manual folders and tags, Mem is built around automatic, AI-driven organization, positioning itself as a 'self-organizing workspace' that surfaces relevant notes and connections without heavy manual upkeep.
The company has raised around 28.6 million dollars from investors including Andreessen Horowitz, Founders Fund, and prominent angels such as Bret Taylor and Daniel Gross, and released a significant Mem 2.0 relaunch in early 2026 aimed at improving speed and data reliability.
Mem's core is a fast note editor paired with AI that automatically organizes, tags, and links related notes without manual folder structures, along with semantic search that finds relevant content by meaning rather than exact keywords.
Mem Chat lets users ask natural-language questions and get answers drawn from their own saved notes and documents, while the newer Mem Agent, available on the Proactive plan, proactively tracks decisions and open items and surfaces relevant context ahead of meetings and deadlines.
Mem offers a free plan with capped monthly notes, AI chat messages, and PDF pages, suitable for light personal use. Mem Pro, priced around 12 dollars per month, removes those caps and adds unlimited notes, chat, deep search, PDF understanding, connected email, and API access.
A higher Mem Proactive plan, priced around 99 dollars per month after a free trial, adds the autonomous Mem Agent capability for users who want the AI to proactively surface relevant notes and briefings rather than relying purely on search and chat.
Mem is an AI-powered note-taking and personal knowledge management app that automatically organizes notes and lets users search and chat with their own saved content.
Mem was founded in 2021 by co-founders and co-CEOs Kevin Moody and Dennis Xu.
Mem offers a free plan with usage caps, a Mem Pro plan priced around 12 dollars per month with unlimited notes and chat, and a Mem Proactive plan priced around 99 dollars per month that adds the autonomous Mem Agent.
Mem Chat is a conversational AI feature that answers questions by searching and reasoning over a user's own saved notes and documents rather than generic web knowledge.
Mem Agent is a proactive AI feature on the Mem Proactive plan that learns a user's priorities from their notes, tracks decisions and open items, and surfaces relevant context ahead of meetings and deadlines.
Mem emphasizes automatic, AI-driven organization of notes with minimal manual structuring, while Notion is a more manually structured workspace built around databases, pages, and user-defined hierarchies.