SigmaNote is made and published by SignifyID LLC. AppBrain is an independent app data site and isn't affiliated with SignifyID LLC. The app name, icon, screenshots and description belong to SignifyID LLC and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 5.00
- 1 ratings
- Last updated
- January 8, 2026
- Size
- 90.2 MB
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Store listing
By SignifyID LLC, from the App StoreDescription by SignifyID LLC Written by the developer, not by AppBrain. Click to read.
SigmaNote lets you build your own AI-powered knowledge hub — a single place to capture, manage, learn from, and create knowledge.
It goes beyond notes or chat.
SigmaNote gives you AI agents that work with your knowledge, across every format.
Capture Knowledge from Anywhere
Bring knowledge into SigmaNote from any source:
• Notes and markdown documents
• PDFs, files, and document scans
• Images with OCR
• Web pages and web archives
• YouTube videos (with or without subtitles)
• Voice recordings and system audio
• Real-time, multi-language transcripts
No format limits. Everything becomes searchable and usable.
AI Agents That Organize for You
SigmaNote’s AI agents help you:
• Find relevant knowledge instantly
• Organize content into the right Spaces
• Connect related ideas across files and formats
• Reduce clutter as your knowledge grows
Your knowledge hub stays structured — without manual effort.
Learn by Listening, Reading, and Conversation
Knowledge shouldn’t just sit there.
With SigmaNote, AI agents can:
• Proactively read or speak knowledge to you
• Explain complex topics in simple terms
• Answer questions grounded in your materials
• Help you think through ideas step by step
It’s like discussing your knowledge with a personal tutor or teammate.
Talk to Write. Build New Knowledge.
SigmaNote introduces voice-driven AI writing.
You can talk to an AI agent to:
• Write new documents
• Edit and update markdown files
• Refine ideas through conversation
• Create knowledge using your entire hub or a selected document
This turns thinking out loud into structured writing — powered by everything you’ve learned.
From Capture to Creation
SigmaNote supports the full knowledge lifecycle:
• Capture information
• Understand it with AI
• Absorb it through reading and listening
• Create new knowledge by talking and writing
All in one personal system.
Who It’s For
Students, researchers, founders, consultants, lawyers, clinicians, creators — anyone who wants to own their knowledge and build with it.
Why SigmaNote
• One hub for all knowledge formats
• AI agents grounded in your data
• Learn by conversation, not just reading
• Turn knowledge into output
Legal
Term of services & privacy policy:
https://www.signifyid.com/terms/view.html?doc=privacy_policy
https://www.signifyid.com/terms/view.html?doc=term_of_service
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 90.2 MB
- Content rating
- Everyone
Technologies used by SigmaNote
Releases
Updates seen on the App Store- Version
- 2.0.0
- Launched
- May 2025
No changelog data
Alternatives
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Rankings
App Store top chartsApp Store Rankings for SigmaNote
About the app and developer
About SigmaNote
SigmaNote is a productivity app developed by SignifyID LLC.
User Ratings
SigmaNote is rated 5.00 out of 5 stars. The rating is based on one rating ratings.
App Information
SigmaNote is freely available from the App Store. The app size is 90.18 MB. The latest version available is 2.0.0. The last update was on January 8, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2025.
Developer information for SignifyID LLC
Address: