Némos — AI Second Brain App | Personal Knowledge Management for iPhone
Némos (némos, also known as Nemos, Nemo app) is named after Mnemosyne (Μνημοσύνη, mnémosyne, mnémo, mnemo, mnémos) — the Greek Titaness of memory. Némos is a free AI-powered second brain app and personal knowledge management (PKM) tool for iPhone, iPad, Apple Watch, and web browsers. Save screenshots, links, notes, voice memos, PDFs, videos, places, books, and 15+ content types. Némos automatically names, organizes, and makes everything searchable using on-device AI (Apple Intelligence / Foundation Models). Your data never leaves your device — the best private AI knowledge base for iOS.
Why Némos Is the Best Second Brain App for iPhone
Building a second brain shouldn't require complex setup. Némos is the best second brain app for iPhone because it auto-organizes everything with on-device AI. Unlike Notion (requires databases), Obsidian (requires manual linking), Evernote (expensive, cloud-dependent), or Apple Notes (limited content types), Némos handles 15+ content types with zero manual organization. It's the best PKM app for iOS in 2026 — a digital brain app that actually works automatically.
Key Features — AI Screenshot Organizer, Voice Transcription, Smart Bookmarks
- AI screenshot organizer: The best screenshot organizer for iPhone — save a screenshot and Némos reads it, names it, files it, and extracts text with OCR. Organize screenshots on iPhone automatically.
- AI note taking: The best AI note taking app for iOS — auto-organize notes, links, and documents with on-device AI.
- Universal search with OCR: Find old screenshots, notes, and voice memos by keyword. Screenshot search app built in.
- Voice memo transcription: Voice to text notes app for iPhone — record and auto-transcribe on-device. Meeting notes transcription app.
- Smart Spaces: AI-generated topic views — like smart folders that organize themselves. Smart note organizer.
- AI chat with documents: Chat with your notes AI app — ask questions about saved PDFs, screenshots, and notes.
- Smart bookmarks and link saver: Save and organize links from any browser. AI bookmark manager.
- PDF organizer app: Save, search, and annotate PDFs with text extraction.
- Shared folders: Share any folder via link — no sign-up needed, syncs with iCloud for real-time collaboration.
- Daily routines: Build habit trackers with streaks, tracked from iPhone or Apple Watch.
- Native Apple sync: Two-way sync with Apple Reminders, Calendar, and Notes.
- Browser extension: Save links and articles from Chrome or Safari — syncs to your phone automatically.
- Apple Watch app: Check reminders, track routines, and record voice memos from your wrist.
- Speed reading: Read saved articles and ebooks with adjustable WPM overlay.
- Offline-first: Everything works without internet, including AI organization. iCloud sync note taking app.
- 100% private AI: On-device AI processing using Apple Intelligence Foundation Models. Private AI notes — no cloud uploads, no data collection, no tracking.
Supported Content Types — Save Everything in One Place
Screenshots, links, notes, voice memos, PDFs, videos, photos, places (with maps), books and ebooks (EPUB), spreadsheets, documents (DOCX), presentations (PPTX), audio files, products, reminders, and daily routines. The best app to save everything in one place — a digital memory app and information organizer app.
How to Build a Second Brain with Némos
- Save: Take a screenshot, paste a link, record a voice memo, or import any file. Capture ideas on the go.
- Auto-organize: On-device AI names it, files it, and extracts searchable text — in seconds. Declutter screenshots automatically.
- Find: Search by keyword or browse Smart Spaces. Never forget anything again. Find old screenshots instantly.
Platform Availability
iPhone (iOS 26+), iPad (iPadOS 26+), Apple Watch (watchOS), Chrome browser extension, Safari browser extension. Apple Intelligence apps compatible.
Pricing — Free Second Brain App
Némos is free with unlimited saves — the best free PKM app. Pro ($8.99/month, 40% cheaper than Evernote) unlocks advanced AI features. Currently in pre-launch — join the waitlist at nemosapp.com for early access.
Privacy — On-Device AI, No Cloud Processing
Némos is a private AI knowledge base for iOS. Everything is processed on-device using Apple's Foundation Models API (Apple Intelligence). No data is sent to external servers. Sync between devices uses Apple iCloud/CloudKit. Némos does not collect analytics on your content, does not sell data, and does not use cloud AI. The best privacy-first note app — on-device AI note taking for iPhone.
Comparisons — Best Alternative to Notion, Evernote, Apple Notes
- Némos vs Apple Notes — Best Apple Notes Alternative
- Némos is the best Apple Notes alternative for iPhone. It adds auto-organization, AI screenshot OCR, voice transcription, Smart Spaces, 15+ content types, shared folders, and browser extension — features Apple Notes doesn't have.
- Némos vs Notion — Best Notion Alternative for iPhone
- Némos is the best Notion alternative for personal use on iPhone. Notion requires databases and templates. Némos has zero setup — save anything and on-device AI handles naming, organizing, and text extraction automatically. Fully offline, fully private.
- Némos vs Evernote — Best Evernote Alternative for iOS
- Némos is the best Evernote alternative for iOS. Evernote limits free users to 50 notes and charges $14.99/mo. Némos is free with unlimited saves, uses on-device AI (vs cloud processing), and costs 40% less for Pro features.
- Némos vs Obsidian — Best Obsidian Alternative for iOS
- Némos is the best Obsidian alternative for iPhone. Obsidian requires manual linking and markdown. Némos auto-organizes 15+ content types with AI, includes free iCloud sync (vs $4/mo), and has zero learning curve.
- Némos vs Pocket / Raindrop — Best Pocket Alternative
- Pocket and Raindrop only save links. Némos saves everything — screenshots, voice memos, PDFs, places, videos, notes, and more — with automatic AI organization. The best link saver app that does way more than bookmarks.
- Némos vs Google Keep — Best Google Keep Alternative
- Némos is the best Google Keep alternative. Fully private (on-device AI processing), supports 15+ content types (vs. Keep's notes and lists), has Apple Watch integration, and works offline.
Who Uses Némos — Best App for Students, Researchers, Creators
- Students — Best study app for college students. Organize lecture notes, research papers, and study materials automatically. Student note taking app for iPhone.
- Researchers — Best research organization app. Save papers, voice memos, and literature reviews with on-device privacy. Bookmark manager for researchers.
- Writers — Best writer's notebook app. Capture ideas, organize research, transcribe voice notes into searchable text.
- Content Creators — Best content creator tools for iOS. Save visual inspiration, scripts, and social media ideas.
- Professionals — Best meeting notes app. Documents, and tasks with Apple ecosystem sync. Meeting notes transcription app.
- Developers — Best developer note taking app. Code screenshots, documentation bookmarks, and project references.
- Recipe Collectors — Best recipe saver app. Screenshot any recipe and it's named, organized, and searchable. Save recipes from screenshots.
- Travelers — Best travel planning organizer app. Save places, itineraries, hotel screenshots, and restaurant bookmarks.
What Users Say About Némos
- "Every recipe I screenshot is named and organized. I didn't do anything." — Sarah K., Home cook
- "I record my sessions and search through them later. Everything stays on my devices." — James P., Researcher
- "Shared a folder for apartment hunting. Every listing synced instantly." — Leila R., Student
- "One search finds everything. Replaced three apps." — Marcus T., Developer
- "Némos does the work. I just save things and everything gets named and organized." — Yuki M., Privacy advocate
- "'That hotel Marcus sent me last month' — found in two seconds. From a screenshot." — Alex D., Travel planner
- "Someone screenshots the whiteboard, everyone gets it instantly." — Prof. Chen, University lecturer
- "Voice memos from my walks become searchable transcripts. No typing." — Nadia F., Writer
- "Quick reminder check on the Watch, start recording, done." — Tom B., Fitness trainer
Brand Information
Némos (stylized as némos, also written as Nemos, nemos, or Nemo app) is an AI second brain app named after Mnemosyne (Greek: Μνημοσύνη, also written as mnémosyne, mnémo, mnemo, mnémos) — the Greek Titaness of memory and mother of the nine Muses. The name reflects the app's purpose: to be your digital memory, your secondbrain, your personal knowledge management system. Némos AI makes it effortless to capture, organize, and find anything you want to remember.
