Comparison

SigmaNote vs Stashwise

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SigmaNote

This app acts as an AI-powered knowledge hub, allowing users to capture, manage, learn from, and create knowledge across various formats. It uses AI agents to organize content, answer questions, and facilitate voice-driven writing and content creation.

Highlights
  • Capture knowledge from diverse sources
  • AI agents for organization and retrieval
  • Learn through conversation and listening
  • Voice-driven AI writing and content creation
  • Unified knowledge lifecycle management
  • Cross-format knowledge integration
Features
Read full description

SigmaNote — AI-Powered Knowledge Hub 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

About

Stashwise

This app helps you organize and leverage your saved content, like articles and videos, by automatically extracting key information. It then allows your AI tools to access and utilize this structured knowledge base, creating a personalized and searchable wiki.

Highlights
  • AI-powered knowledge extraction
  • Connect AI tools to personal data
  • Searchable personal wiki
  • Create structured learning guides
  • Analyze video content
  • Export to Markdown/Obsidian
Features
Read full description

Stashwise is the second brain your AI can actually use. You already collect the good stuff: articles, videos, posts, ideas, tutorials, research, tools. But it piles up, disappears into folders, and goes missing the moment you need it. Worse, none of it is available to the AI tools you work in every day. Stashwise fixes both. Save a link, video, or note, and it pulls out the useful parts for you: summaries, key takeaways, topics, connections, and learning paths. Everything you keep becomes a structured, searchable personal wiki. Then it goes further than a notes app ever could. Connect your AI tools, and they can read and search everything you have saved, right inside your own workflow. You choose what goes in, so your assistant is grounded in sources you actually trust instead of whatever the open web returns. You are building the knowledge, and putting your AI to work on it. Collect what matters. Your AI uses it anywhere you want. - What you can do: - Give your AI your knowledge Connect Stashwise to your AI tools so they can draw on your saved library while you work, grounded in what you collected, not random web results. - Search your own collection Ask questions and get answers from the things you saved, not the open web. - Chat with your saves Understand articles, compare ideas, pull out details, and make sense of a messy collection. - Create Learn Guides Turn saved material into structured learning paths built from resources you already found interesting. - Analyze videos Save supported videos and clips so they become searchable, summarized, and easy to revisit. - Build a personal wiki automatically Stashwise extracts topics, summaries, and relationships without making you tag everything by hand. - Catch relevant trends See emerging topics that connect back to your saved knowledge, so new ideas are easier to place. - Own your knowledge Your wiki is never locked in. Export to Markdown or Obsidian, keep a local backup, or bring your saved context into your own workflows. Your notes, your wiki, and your AI should all be able to use the knowledge you already collected. - Who it is for Stashwise is for builders, students, researchers, creators, and curious people who save more than they can process. If your bookmarks, notes, and watch lists are a pile you meant to come back to, Stashwise turns that pile into knowledge you and your AI can actually use. Collect the knowledge. Put your AI to work on it. Grow a brain you own. Terms of Use (EULA): https://stashwise.co/terms Privacy Policy: https://stashwise.co/privacy

Screenshots

SigmaNote4 screens
Stashwise4 screens

Verdict

The call

The clearest difference is update cadence: Stashwise at every 3 days against SigmaNote's weekly. Stashwise also leads on iOS requirement (15.1 vs 18.0). On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SigmaNote sells 4 in-app purchases, starting at $8.99 per month and Stashwise sells 4 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SigmaNote against 5.0 for Stashwise. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

SigmaNote ships an update weekly, Stashwise every 3 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
SigmaNote versus Stashwise: the parameters behind the verdict, then further details
ParameterSigmaNoteStashwise
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size90 MB106 MB
Age rating4+4+
DeveloperSignifyID LLCScott Lai

Customer experience

SigmaNote

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Stashwise

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

SigmaNote

Subscriptions4
  • SigmaNote Premium Monthly$8.991 Month
  • SigmaNote Premium Plus Monthly$12.991 Month
  • SigmaNote Premium Yearly$80.991 Year
Show 1 more
  • SigmaNote Premium Plus Yearly$116.991 Year
4 purchases

Stashwise

Subscriptions4
  • Stashwise Plus Monthly$19.991 Month
  • stashwise_pro_monthly$24.991 Month
  • stashwise_plus_yearly$199.991 Year
Show 1 more
  • stashwise_pro_yearly$249.991 Year

Questions

Is SigmaNote free?
SigmaNote is free to download, with in-app purchases available.
Is Stashwise free?
Stashwise is free to download, with in-app purchases available.
Which has better reviews, SigmaNote or Stashwise?
SigmaNote and Stashwise are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do SigmaNote or Stashwise have ads?
Neither SigmaNote nor Stashwise shows ads.
Which is updated more often, SigmaNote or Stashwise?
SigmaNote ships an update weekly, and Stashwise every 3 days. Most recently, SigmaNote was updated on November 5, 2026 and Stashwise on October 31, 2026.

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