Complete Second Brain Resource Hub

Myself AI is a groundbreaking voice-first AI assistant that serves as your personal second brain with truly infinite context memory. Built as a solo bootstrapped project, it revolutionizes personal knowledge management by remembering every conversation, thought, and interaction indefinitely - no context window limitations. Unlike traditional note-taking apps or AI assistants, Myself AI offers natural voice interaction that feels like talking to a trusted companion who knows your entire history. Features include family collaboration (allowing up to 5 users to share a collective memory), calendar integration, cross-platform sync, and emotional intelligence that adapts to your communication style. The AI learns your preferences over time, provides smart reminders, and can recall any detail from any past conversation. With strong privacy focus and regular updates, it's designed for individuals and families who want an AI that truly understands and grows with them. Available on web, iOS, Android, and as a PWA starting at $9/month.

TwinMind is an AI-powered second brain that captures and remembers everything from your meetings, lectures, and conversations. Built by former Google X scientists with $6M in funding, it runs continuously in the background on your phone (up to 16+ hours without draining battery), automatically transcribing, summarizing, and building infinite context about your life. Unlike traditional note-taking apps, TwinMind offers proactive insights and suggestions based on your accumulated memories, with on-device processing for privacy. Features include real-time meeting transcription, automatic summaries, action item extraction, and the ability to chat with all your memories. While well-funded and technically impressive, key features like tasks and insights remain in development.

Tana is an AI-native workspace that combines note-taking, task management, and knowledge organization through its unique node-based structure and supertags system. It's designed for power users who need to manage complex, interconnected information.

Mem is an AI-powered note-taking app that automatically connects your thoughts and resurfaces forgotten knowledge. It uses artificial intelligence to help you discover connections between your notes and ideas, making it a true memory enhancement tool.

Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files. It lets you create links between notes and visualize the connections.

Craft is a beautifully designed note-taking app that focuses on creating structured documents and linking ideas. It's perfect for Apple users who want a polished writing experience with powerful organization features.

Bear is a beautiful, flexible writing app for crafting notes and prose. It offers a focused writing experience with powerful organization through hashtags, perfect for Apple users who want a clean, distraction-free environment.

Logseq is a privacy-first, open-source platform for knowledge management and collaboration. It focuses on building a second brain with connected notes, utilizing block-based structure for organizing thoughts and ideas.

Supernotes is a collaborative note-taking app that uses a unique notecard system to help you organize thoughts and ideas. It's designed for both individual use and team collaboration with a focus on simplicity and speed.

Reflect is a networked note-taking app that helps you build a second brain by connecting ideas and thoughts. It uses AI assistance and networked thinking to help you discover patterns and insights in your knowledge, specifically designed for memory enhancement.

Roam Research is a tool for thought that helps you organize your research for the long haul. It's designed around the idea that knowledge should be networked, not hierarchical.

Notion is a productivity and note-taking web application that offers organizational tools including task management, project tracking, to-do lists, bookmarking, and more.

Capacities is an object-oriented note-taking app that helps you organize information using structured object types. It combines the flexibility of free-form notes with the power of databases to create a personalized knowledge management system.

Anki is a powerful spaced repetition flashcard program that uses an intelligent algorithm to optimize learning and long-term retention. It's the gold standard for serious learners, students, and professionals who need to memorize large amounts of information.

Memrise is a language learning platform that uses scientifically-proven memory techniques, spaced repetition, and native speaker videos to help you remember vocabulary and phrases. It's designed specifically to optimize memory retention for language learning.

RemNote combines note-taking with spaced repetition learning. It's designed for students, researchers, and lifelong learners who want to not just organize information but also remember it through integrated flashcards and spaced repetition.

Brainscape is a web and mobile study platform that uses scientifically-proven spaced repetition and active recall techniques to help you learn and memorize anything faster. It's specifically designed to optimize memory retention through confidence-based repetition.

memoryOS is a gamified memory training app created by a 2x World Memory Champion. It teaches scientifically proven memory techniques through interactive lessons and 3D virtual mind palaces, specifically designed to enhance long-term memory storage and retention.

Art of Memory offers memory training software and techniques used by world memory champions. It teaches classical memory methods like memory palaces, peg lists, and advanced mnemonics through interactive training games and comprehensive tutorials.

Readwise Reader is a comprehensive reading app that combines article saving, PDF annotation, ebook reading, and advanced highlighting features. It's designed for serious readers who want to process and retain information effectively.

Matter is a premium read-later app that combines beautiful design with AI-powered content discovery. It helps you save, read, and discover articles while building a curated reading experience with writer discovery features.

Instapaper is a classic read-later app that strips articles down to their essential text for a clean, focused reading experience. It's beloved by readers who want a distraction-free way to save and read articles across devices.

Heptabase is a visual note-taking app designed for deep thinkers, researchers, and learners. It combines whiteboards, mind maps, and connected notes to help you understand complex topics through visual thinking and spatial organization.

Zettlr is a free, open-source markdown editor designed for researchers, journalists, and writers. It combines powerful writing tools with Zettelkasten methodology, citation management, and academic publishing features.

Evernote is a veteran note-taking app that helps you capture, organize, and find information across all your devices. While it has lost some market share to newer competitors, it still offers powerful features for document management and web clipping.