SigmaNote vs Foxlore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Foxlore
Capture and connect your ideas with a private, intelligent notebook. Write with rich Markdown, organize with nested tags, and find information using advanced search. AI features run on-device for enhanced privacy.
- Rich Markdown support (tables, LaTeX, code)
- Nested tags and reusable filters for organization
- Exact-word and semantic search
- On-device AI summaries
- Attachment support (audio, PDF, images)
- Face ID/Touch ID tag locking
- iCloud sync and local backups
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Foxlore is a private, intelligent notebook that helps you capture ideas, connect knowledge, and rediscover what you know. • Write with rich Markdown, including tables, LaTeX equations, lists, callouts, code blocks and inline images. • Browse your library as a streamlined note stream with focused notes and compact previews. • Organize notes using nested tags and reusable Include, Require and Exclude filters. • Find information using exact-word and semantic search, or discover related ideas with Find Similar. • Generate on-device summaries on supported devices. • Attach locations, calendar events, audio and PDFs—then search their extracted content. • Create links between notes and attachments. • Zoom into images with familiar pinch gestures. • Protect sensitive notes by locking tags with Face ID or Touch ID. • Import and export Markdown, or export individual notes as paginated PDFs. • Keep your library synchronized through iCloud, with automatic local backups. Privacy is fundamental to Foxlore. Search, indexing, image captions and AI features run on your device. Foxlore does not send your notes or searches to a hosted AI service. When iCloud sync is enabled, your library is synchronized privately using Apple’s CloudKit.
Screenshots
Verdict
The clearest difference is ratings volume: Foxlore at 3 against SigmaNote's 1. On price, rating, update cadence 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
Both are free to download. SigmaNote sells 4 in-app purchases, starting at $8.99 per month and Foxlore sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for SigmaNote against 5.0 for Foxlore. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | SigmaNote | Foxlore |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, Mac |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 90 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | SignifyID LLC | Searchliness |
Customer experience
SigmaNote
Foxlore
In-app purchases
SigmaNote
- SigmaNote Premium Monthly$8.991 Month
- SigmaNote Premium Plus Monthly$12.991 Month
- SigmaNote Premium Yearly$80.991 Year
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- SigmaNote Premium Plus Yearly$116.991 Year
Foxlore
- Unlock Foxlore$9.99









