Mem is an AI-native note-taking app that uses an AI agent to organize, surface, and let you search and chat across what you save, rather than relying on manual folders and tags. It is built for individuals and knowledge workers who want their notes to stay usable as they pile up, from quick daily capture to long-form research. Mem runs on a freemium model: a free plan covers a limited monthly allowance, and Mem Pro starts at $12 per month for higher usage limits.
Who builds it
Mem is published at mem.ai as a dedicated AI note-taking product built around the Mem Agent, which the vendor describes as learning what matters from what you save. Rather than treating AI as an add-on search box bolted onto a traditional notes app, Mem positions the agent as the organizing layer that decides how notes, chats, and documents connect to one another as your collection grows.
Core features
- Mem Agent — learns what matters from what you save and drives automatic search and chat over your notes.
- Notes and chat — capture notes and chat with an AI assistant about their contents; the free plan includes 25 notes and 25 chat messages each month.
- PDF search and chat — search and chat across PDF pages you've saved, with 25 PDF pages per month included on the free tier.
- Connected email — link an email inbox so relevant content flows automatically into your notes.
- API access — build custom integrations on top of Mem, available alongside connected email.
Who it is for
Mem fits individuals, researchers, and knowledge workers who want an AI-first alternative to traditional folder-based notes apps and who are comfortable starting on a metered free plan before upgrading. Because the free tier is capped at 25 notes, 25 chat messages, and 25 PDF pages per month, teams and heavier users will most likely need Mem Pro at $12 per month to move past casual note-taking volumes. Mem is not a project-management or team-collaboration tool — its product focus is personal notes and knowledge capture, not tasks, boards, or shared workflows, so teams looking for that should look elsewhere. Anyone deciding between Mem and a traditional notes app should first check whether the free plan's monthly caps are workable for their volume of notes, chats, and PDFs before assuming Mem Pro is required.
Bottom line
Mem's pitch is an AI agent that organizes notes automatically instead of leaving that work to the user, wrapped in a straightforward freemium plan with a real (if metered) free tier and connected email plus API access on Mem Pro. Anyone evaluating it against traditional notes apps should weigh the free tier's monthly caps against Mem Pro's $12/month price before moving daily note-taking onto it. Since Mem does not publish compliance certifications or a dedicated privacy policy in its pricing materials, teams with formal data-governance requirements should check the vendor's site directly rather than assume Mem matches enterprise-grade notes tools on that front.