Personal AI / PKM / lifelogging memory

Folder + tag hierarchy; iCloud sync. Writing Tools (proofread / rewrite / summarise) across all note content; audio transcription + AI summary; smart search; reminders from to-dos.

Hierarchical block-based documents + nested pages (no native graph). In-document AI assistant: summarise, rewrite, translate, Q&A over docs, proofread.

Windows-native screen-recording memory. Continuously indexes activity across apps, documents, browsing; timeline UI for revisiting work. Distinct from Copilot Memory.

Notion's first-party AI. Reads up to 50 pages per query (as of Jan 2026); Custom Instructions persist brand voice / team structure / preferences. Context follows you across model swaps. Notably not persistent cross-session learning — it …

Hierarchical outline + bidirectional links + spaced-repetition flashcards. AI auto-generates flashcards/quizzes from notes; AI summaries; fill-gap questions.

Tencent's knowledge-management productivity AI, powered by Hunyuan. Copilot mode adds a four-module persistent memory architecture: Soul (agent persona), User (profile), Memory (long-term declarative), Agent (learned skills/task experien…

Tags + bidirectional links + task/calendar integration. "Task Score" priority matrix. AmpleAI plugin supports OpenAI, Anthropic, Gemini, Grok, DeepSeek, Ollama.

Object-graph (people, books, projects as typed objects); daily notes; bidirectional links. AI chat grounded in current note; AI property auto-fill; in-editor writing assistant; pattern-finding across objects.

Visual whiteboard canvas + nested cards + bidirectional links + journal. AI chat with cited sources inside whiteboards; supports OpenAI / Gemini / Anthropic backends.

AI assistant that builds a searchable memory from meetings (Zoom app), emails, documents, notes and web reading; answers questions, prepares client context and drafts content. Now marketed mainly to coaches and knowledge workers. As of 2…

Open-source local-first outliner. Notes stored as Markdown / Org-mode on disk. AI integration via community plugins (e.g. logseq-ai for chatting with the graph). Graph view + backlinks; daily-journal-driven workflow.

Note-taking with no folders; AI-chat over notes. Focused on connections between notes rather than hierarchy.

No tags, no folders, no manual organisation. Automatic image tagging, OCR search inside screenshots/memes, smart auto-grouping (Smart Spaces), semantic search. Privacy-first.

Obsidian community plugin. Generates embeddings locally with a bundled model (TaylorAI/bge-micro-v2, 384-dim); chat with notes + see semantically related links. No API key required for local; supports 100+ cloud models optionally. Privac…

AI memory platform sold to telecom carriers: memory, identity and on-network inference that turn each subscriber identity on the network into an agent (products: My AI, Persona Studio, Memory Core; MODEL-4).

Daily-notes + backlinks note app now relaunched as Reflect Open: open-source, offline-first, notes stored as local Markdown files synced via iCloud or Git; optional AI with your own API key. Reflect Classic still maintained.

Auto-tagged flat notes; semantic clusters (no folders). "Skai" personal AI surfaces related notes, semantic search, cross-tool integration (Drive, Slack, Calendar). ADHD-focused.

Infinite whiteboard + bidirectional-linked cards (spatial + networked hybrid). AI assistant for brainstorming, summarisation, rewriting selected cards.

Flat notecards + tags + collections; bidirectional references. AI tag recommendations, grammar suggestions, Vision (notecard editing assistant), Collection Creator.

Tana split in Mar 2026: the supertag-based outliner/PKM is now 'Tana Outliner' at outliner.tana.inc, while tana.inc is a separate agentic meeting platform sharing a knowledge graph. Outliner keeps Tana AI on nodes (chat with notes, summa…

Always-on 'personal AI OS' that indexes email, meetings, GitHub, Linear, Slack and assistant chats into a temporal knowledge graph with fact classification and intent-driven retrieval, plus MCP integrations. reports 88.24% on LoCoMo (ven…

Local-first 24/7 screen and audio recorder that indexes what you see/hear and exposes it as context/memory to AI agents (MCP, API); open-source Rewind/Recall alternative. Y Combinator S26

Open-source system for training a local 'AI self' from your own notes and memories using hierarchical memory modelling, deployable as a personal agent on a network of Second Mes. #12 in TeleAI Awesome-Agent-Memory