Notes that answer back. Three apps that use AI to search, summarise and make sense of what you've saved.
Researched from official sources, updated today, 2 min readAI is changing what a notes app can do: finding things for you, summarising and answering questions about your own material. This guide is for people who want AI help with their notes. We compared the AI-focused note apps in our inventory and picked three. Prices were checked on November 1, 2026.
| Notion | Mem | NotebookLM | |
|---|---|---|---|
| Best for | An all-in-one workspace with AI built in | Notes that act as context for an AI assistant | Studying and summarising your own sources |
| Price | Free; Plus $10/member/month; Business $20/member/month | Free; Plus $9/month; Pro $29/month | Free standard plan; higher limits with Google AI plans |
| Platforms | iOS, Android, Mac, Windows, web | iOS, Mac, Windows, web | iOS, Android, web |
An all-in-one workspace with AI built inNotion is a workspace for knowledge, documents, projects and tasks, with AI features for finding information and automating work. Because your notes sit next to databases and projects, the AI has a lot to work with.
Pick it if you want AI inside a full workspace for notes, docs and projects.
Notes that act as context for an AI assistant
Mem is a note-taking and personal knowledge app that stores your notes and makes them searchable and usable as context for an AI assistant. It also offers task and project tracking, voice capture, scheduled routines and external connections.
Pick it if you want to dump notes in and let AI help you find and use them.
Studying and summarising your own sources
NotebookLM, now presented by Google as Gemini Notebook, is a source-grounded research and learning tool. You add documents, websites, YouTube videos or text to a notebook, then ask questions, generate summaries and listen to audio overviews based on those sources. The standard plan is free.
Pick it if you want AI help understanding material you already have, like readings or reports.
Also consider: Recall (saves and summarises articles, videos and PDFs, with a free plan) and Capacities (object-based notes with optional AI).
Notion is the best choice if you want AI inside an all-in-one workspace. Mem suits people who want an AI-first personal notebook. NotebookLM is the best free tool for making sense of a set of sources.