Sider vs Notion
Side-by-side comparison of AI visibility scores, market position, and capabilities
Bootstrapped AI browser extension with 6M+ users aggregating 20+ AI models (GPT-4o, Claude, Gemini). 2025 Chrome Editor's Pick. Founded 2023, Boston. No funding.
About
Sider is a bootstrapped AI browser assistant founded in 2023 by Joel Liu and Rick Fan, headquartered in Boston. It has grown to 6M+ users without external funding, making it one of the most notable self-funded AI tool successes. Named a 2025 Chrome Editor's Pick.
All-in-one workspace with $10B valuation serving 30M users; flexible block-based notes, databases, and wikis with Notion AI assistant competing with Confluence and Coda for teams.
About
Notion is an all-in-one workspace platform combining notes, wikis, databases, project management, and documents in a flexible, block-based editor that allows teams and individuals to build customized productivity systems without code. Founded in 2016 in San Francisco by Ivan Zhao and Simon Last, Notion raised over $340 million at a $10 billion valuation and has grown to serve over 30 million users ranging from individual knowledge workers to enterprises using Notion as their company wiki and project management system.
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