Mem vs Notion vs Gemini Notebook

Compared on	Mem Free plan · from $9/mo VisitRemove	Notion Free plan · from $10/member/mo VisitRemove	Gemini Notebook Free plan · from $4.99/mo VisitRemove
What it is	AI notes workspace with an agent that learns from what you save	Workspace for docs, wikis, databases and projects with built-in AI	Google's source-grounded research notebook, renamed Gemini Notebook in 2026
Free plan	25 messages to Mem, 25 new notes per month, task and project tracking for 25 notes, 15 open tasks and projects, 3 hours of Voice Mode.	Pages and blocks unlimited for individuals but limited for workspaces with 2+ members; file uploads up to 5 MB; 7-day page history; up to 10 external guests; 1 chart; Notion AI as a limited trial only.	100 notebooks, 50 sources per notebook, 50 chats per day, 3 Audio Overviews and 3 Video Overviews per day, 10 Deep Research reports per month
Cheapest paid plan	$9/mo (Mem Plus)Mem pricing	$10/member/mo billed annually (Plus)Notion pricing	$4.99/mo (Google AI Plus)Gemini Notebook pricing
What it covers	50 messages, 50 new notes and 10 hours of Voice Mode; no annual billing option is shown.	Notion AI is only a limited trial on Plus. Full Notion AI starts on Business: $24 per member/month billed monthly, or $20 billed yearly.	Upgrades come through Google AI plans, which also cover the Gemini app and cloud storage. Plus raises limits to 200 notebooks, 100 sources per notebook and 200 chats per day.
Free trial	None stated	None stated	None stated
Platforms	macOS, Windows	Web, macOS, Windows, iOS, Android, Chrome extension	Web
Integrations (vendor's figure)	Not stated	Not stated	Not stated
Open source	No	No	No
Good for	Keeping personal meeting and research notes searchable by asking questions Turning notes into a tracked list of tasks and projects Capturing ideas from web pages and by voice	Keeping a team wiki, meeting notes and project tracker in one shared workspace Building simple databases for clients, content calendars or hiring without code Summarising meetings and drafting documents with AI on the Business plan	Studying a set of reports or papers and asking questions about them Turning documents into an audio summary to listen to Preparing a briefing from meeting notes and research files
Watch out for	Every plan has usage caps on messages, new notes, open tasks and Voice Mode hours Custom routines and connections start on Mem Pro ($29 per month) Plans are for individuals; no team or enterprise plan is listed	Notion AI is only a limited trial on Free and Plus; full access starts on Business ($20 per member/month billed yearly) Free plan limits file uploads to 5 MB and page history to 7 days, and block storage is limited once a workspace has 2+ members Custom Agents and premium AI models use Notion credits, which are charged separately	The free plan allows 50 sources per notebook and 50 chats per day Audio and Video Overviews are capped at 3 per day on the free plan Watermark removal is limited to Pro and Ultra
Made by	Mem	Notion Labs, Inc.	Google

Entry prices are the cheapest paid plan, as each vendor publishes it; “What it covers” says what that price is per (a user, a channel, a brand, a number of contacts). The sources are listed on each tool's page.

Every tool in AI productivity and scheduling tools and AI research tools is on their category pages, with the written head-to-heads on Compare.