Macro App vs 23Brain

Macro is a workspace offering email, messaging, notes, tasks, pdf, diagrams, file storage, and code-editing—all alongside LLMs that have context on everything you touch.

Your second and third brain for smarter learning 23Brain helps you collect, summarize, and retain knowledge from everything you read, watch, or listen to — powered by AI. Build a personal learning system that grows with you. How it works • Summarize any content automatically Save links, videos, or PDFs — 23Brain generates concise, AI-powered summaries. • Learn on the go Listen to audio summaries anywhere and make use of your time more efficiently. • Organize with collaborative collections Group related topics, share insights, or explore curated watchlists. • Retain knowledge with AI-generated quizzes Reinforce what you’ve learned through personalized quizzes that adapt to your interests. • Chat with your second brain Ask questions, connect ideas, and reflect on what you’ve learned through intelligent conversations. • Track your progress Stay motivated with streaks, insights, and detailed learning statistics. Why 23Brain Unlike traditional note-taking tools, 23Brain helps you remember more and understand faster — not just store information. It’s your personal AI companion for continuous learning and long-term growth. Key features • AI summaries for articles, videos, and podcasts • Audio playback for summaries • Personalized quizzes and progress insights • Collaborative collections and watchlists • Multi-language support for 12 languages including English, German, and Hindi • Light and Dark Mode Start building your second brain today. Turn what you learn into knowledge that lasts.