Everything Noesis can do
Cards move slowly on their own. Shuffle to discover a new combination.
Quiz yourself on what you read.
Generate a vocabulary exam from any note in one click. Take it inline as an interactive note — answers live in pre-placed text-note markers. Submit, and the AI grades MCQs deterministically and translations with Gemini. A red Score: 18/20 marker locks the page.
1. The word "meticulous" means…
2. Translate "piece of cake"
Your knowledge base has superpowers.
Claude Code connects to Noesis with 30+ tools. Search, sync, enhance — all from a terminal. Each Navi can run a different AI model.
$ claude
# What did I learn about auth?
search_semantic("auth flow")
> Found 3 notes (0.89, 0.84, 0.71)
# Sync local notes to cloud
sync_notes()
> Synced 12 files (3 new, 9 updated)
Annotate notes like paper — but better.
Drop handwriting strokes, circles, rectangles, arrows, serial number badges, link pins, sticky notes, and icons onto any paragraph — even images and Mermaid diagrams. New: text-style markers apply formatting annotations, and floating shapes hover freely anywhere on the page. Vivid palette, full undo/redo.
Works with the tools you already use.
Your notes are plain markdown files. Edit them in Claude Code, Obsidian, or VS Code. Noesis adds the intelligence — search, AI commentary, cloud sync — without lock-in.
30+ MCP Tools
Claude Code connects to your notes with 30+ tools — search, sync, enhance, discover.
Install as App
On iOS, tap Add to Home Screen. On Android, tap Install App. Noesis runs full-screen like a native app — no App Store needed.
Ask for it. It's already there.
Forget digging through folders. Ask in plain language and Noesis finds exactly what you need — even things you forgot you knew.
Deep Work — Cal Newport Notes
The Pomodoro Method
Why Distraction Spreads
Image Generation
Generate and edit images with Gemini Pro directly inside your notes and chat.
Share as Public Link
Publish any note, dictionary lookup, or chat as a read-only link — with a rich preview card (title, image, description) when shared in Slack or iMessage. Viewers can annotate or import it into their own library.
Voice Input
Speak in any language — AI corrects your speech in real-time, even while you're still talking. Auto-stops on silence.
Quick Note
Capture a thought in one click. Notion-style WYSIWYG with headings, lists, and quotes — autosaves as you type.
Design any AI persona. Give it a voice.
Build a Navi with any ability — English tutor, coding mentor, writing coach. Shape its personality. Set its avatar to JK Rowling or your favorite character. Then just chat, like a messenger app. With TTS and dictation, it feels like a real conversation.
Sensei
English Tutor
Ada
Code Mentor
Rowling
JK Rowling
Coach Max
Writing Coach
Scroll History
Navigate your reading history with ← → — jump back to where you were after clicking a link or heading, just like a browser tab.
Let your Navis deliberate.
Set a topic and watch 2–6 Navis debate it from their own perspectives. Each turn builds on the last — like a podcast you can interrupt. Inject a counter-argument mid-session, pause to reflect, or steer it toward a conclusion.
Discussion topic
Is passive income a myth or a strategy?
ModeratorImage Shelf
Stage screenshots once, drop them into any chat. Synced live across tabs and devices — never re-upload the same image twice.
Import from URL
Paste any article URL — or a tweet thread, or an X post. Noesis fetches the page, then an AI pass adds a TL;DR, section diagrams, key takeaways, and enriched metadata. Clean markdown in one click.
Create from Any Source
Turn any PDF, URL, chat session, transcript, math worksheet, or note into a structured study guide — pick a template, one click.
Version History
Three-track snapshots — manual checkpoints, daily auto-saves, and pre-AI captures — so you can revert any note to exactly where you left it.
Meet FlowLearn. Learn English without even trying.
Subscribe to YouTube channels you already enjoy. FlowLearn turns every video into a language lesson — vocabulary, comprehension, and listening exercises that feel effortless.
AI tutors that actually know what you're studying.
Create a Navi persona as your language tutor. Listen to any sentence with word-by-word highlighting — then repeat with voice dictation while AI corrects your speech in real-time. Echo explains grammar; Whisper flags mistakes native speakers would catch.
BYOK Multi-Key
Bring your own AI keys. No subscription. Your cost, your control.
Melody
Hover the nav and your notes sing. 40+ classical pieces, six playful instruments — Hum, Robot, Fairy, Ghost, Alien, Dog.
Listen, don't just read.
Vocabulary you've looked up plays back as a podcast — an LLM teacher narrates examples, words karaoke-highlight as TTS speaks them. Works for English and Mandarin (per-character highlighting). Tap any line to repeat.
Today's vocab review · 14 words
Voice: Aria · 6:42 / 12:30
Now reading…
A meticulous editor catches every typo before publication.
中文逐字朗讀
那 次 考 試 簡 直 是 小菜 一 碟。
A chat with AI can be a note too.
Mark up any AI message — circle a key line, drop a sticky, scribble in your own handwriting. Spin the thread out as a note, then keep chatting and the note grows with the conversation.
Notes from Video
Paste any YouTube URL — get timestamped study notes, a lecture outline, or a concept map. The video stays; the knowledge is yours.
Cloud Sync
Your notes everywhere — local files and cloud, always in sync.
Navi Discussion
Pick 2–6 Navis and hand them a question. They hold a structured roundtable — each challenges, agrees, and builds on prior turns. Inject a comment, pause to think, or let the Moderator wrap up.
Quiz from Any Section
Hover any heading in the TOC sidebar and click Quiz Me — generate a focused quiz on just that chapter, without leaving the note.
Two AIs. Two perspectives. One deeper understanding.
Every note gets commentary from Echo (who builds on your ideas) and Whisper (who pokes holes in them). Like having a supportive mentor and a sharp critic — at the same time.
JIRA Import
Import any JIRA issue as a clean markdown note — title, description, and code blocks all preserved. Backlog knowledge, searchable.
Text-to-Speech
Reads aloud with word-by-word highlighting — and per-character for Mandarin & CJK. Edge voices by default; preview each one before you pick.
Your reading companion. On every page.
Import any book and read it in Noesis. Select a phrase you don't know — a Companion button appears instantly. Your AI tutor breaks it down in context. Set your Navi to "JK Rowling" and have her explain her own writing.
Wait, how much does AI cost?
Bring your own Claude or Gemini API key — you pay only for what you use. Noesis auto-switches providers if one quota runs out. No subscription required.
Invite someone in. Work on it together.
Give contacts live access to your notes, chat sessions, and Navis. Co-edit in real time, see who's online right now, and manage roles — all backed by your trusted contact graph.
Invite a contact
People with access
PDF to Markdown
Turns any PDF into clean, searchable notes in seconds — including scan-only documents. AI OCR extracts text from image-only pages automatically.
Dictation Refinement
Fixes your speech as you talk — grammar, word choice, and fluency corrected in real-time before the sentence even ends.
Generated note
Why Highlighting Doesn't Help Memory
Passive re-reading builds familiarity, not recall. Explaining ideas back in your own words — elaborative interrogation — is what actually makes them stick.
Look up anything. In any language.
Not just words — idioms, slang, and technical terms. Now with a dedicated 國語辭典 for Mandarin. Select a quoted phrase to ask "what does this mean here?", jump through related forms, save lookups to Noesis, or share any entry as a public link.
Translated: piece of cake →
AI Explanation
An informal idiom meaning something very easy to accomplish, requiring little effort.
Example Sentences
1. The exam was a piece of cake.
那次考試簡直是小菜一碟。
Echo & Whisper
Two AI voices, one deeper understanding. Echo builds on your ideas; Whisper pokes holes in them.
Language Tools
Dictionary, translator, TTS — 8 languages built in.
AI writes. You think.
AI generates your notes automatically. Import a PDF. Have a conversation. Your knowledge base grows — without you typing a single note.
Spaced Repetition vs Re-reading
Switching from another markdown app? Compare Noesis with Obsidian
Prefer to write by hand? See handwriting & ink in Noesis