WisdomTree

What WisdomTree does

WisdomTree is a Sweden-based, bootstrapped personal knowledge management application operated by sole proprietor Simon Dürr out of Gothenburg. The product is a web-based visual note-taking application that helps individual learners retain and reuse information drawn from books, podcasts, lectures, and other educational content by combining evidence-based learning techniques with a visual tree-based organizational metaphor. Core mechanics include a "Knowledge Tree" of nodes containing "Blocks of Wisdom" (text, image, and quote attachments), bi-directional linking between notes, flash cards for spaced repetition, and gamification to sustain engagement. Data portability is built in via Markdown export. Cloud infrastructure is hosted in Frankfurt, Germany, and content is managed through Prismic CMS.

Product access today is primarily via web browser at wisdomtree.app and my.wisdomtree.app, with native iOS and Android apps in development as of the most recent website content. The business model is freemium consumer/small-team: a free tier offers unlimited nodes, blocks, bi-directional links, and learning cards, while a Supporter tier is defined at $6/month for custom categories, colors, and unlimited quotes — although the pricing page explicitly notes all features are currently free during the development phase. Distribution is product-led and self-serve, supported by organic content marketing (a blog on memory science and learning) and an Instagram presence. Operations rely on Sendinblue for email, Stripe for future subscription billing, and Heap.io for product analytics.

The company is run part-time with a two-person team consisting of the founder and a contributor; it has no external funding, no institutional investors, no parent company, no patents, no enterprise customers, and no disclosed revenue. Operating geographies are global via the web.

Name

WisdomTree

Legal name

Simon Dürr

Website

https://wisdomtree.app

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

WisdomTree is a Sweden-based, bootstrapped visual note-taking web application that helps individual learners retain and connect insights from educational content using a Knowledge Tree structure, bi-directional links, and spaced repetition, sold freemium at $6/month.

Ownership category

akta.pro rank

Product category

Note-Taking and Personal Knowledge Management Software

NAICS

Educational Support Services (6117), Web Search Portals, Libraries, Archives, and Other Information Services (519)

SIC

Services-Prepackaged Software (7372)

akta.pro industry

PRIMARYEDAFAGAD

Digital Whiteboards, Annotation & Collaborative Canvas Tools

Education/Education Technology (EdTech) & Digital Learning/Collaboration, Classroom Engagement & Communication Tools

Keywords

• Visual note-taking
• Knowledge management
• Spaced repetition
• Personal knowledge base
• Note organization

Headquarters

HQ city

Göteborg

HQ country

Sweden

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Supporter Subscription: Paid subscription tier ($6/month) offering additional features like custom categories & colors, unlimited quotes, and unlimited image search. Currently all features are free while in development priority phase.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels2 records

Core offering

WisdomTree is a visual note-taking and personal knowledge management web application that lets individual learners collect, organize, and remember insights from books, lectures, podcasts, and other content. Its core experience centers on a Knowledge Tree of nodes and "Blocks of Wisdom" connected by bi-directional links, reinforced with spaced repetition learning cards, image search, gamification, and Markdown export to support long-term retention.

Product overview

WisdomTree is a single unified visual note-taking and personal knowledge management application. The core product offers a Knowledge Tree feature for visual organization of learnings, Blocks of Wisdom for attaching texts, images and quotes to nodes, bi-directional linking between notes, flash cards for spaced repetition learning, image search capabilities, and Markdown export functionality. The application is accessible via web browser with mobile apps for Android and iOS currently in development. The company operates a freemium model with a free tier providing unlimited nodes, blocks, bi-directional links and learning cards, while a Supporter subscription ($6/month) adds custom categories, colors, and unlimited quotes.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Users report improved ability to remember and use gathered information

Named customers5 records

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature8 records

Partnerships

Three partnerships are on record, tiered minor.

• SendinblueminorOthersThird-party email service used for communication with users, including transactional emails, weekly summaries, and learning card reminders. Data processed under privacy policy.
• StripeminorOthersPayment processing platform for handling subscription billing when the Supporter tier becomes a paid feature. Data processed under privacy policy.
• Heap.iominorOthersProduct analytics platform used to understand how users interact with the product and which features they use, helping to improve the product experience.

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Evernote: Evernote is a legacy broad-incumbent note-taking app with a large consumer base. It competes for the same horizontal "store what I learn" use case but lacks WisdomTree's visual tree and spaced-repetition retention features.
• Quizlet: Quizlet is a broad-incumbent flashcard and study platform built around spaced repetition. It competes with WisdomTree's learning-cards layer at large scale but lacks WisdomTree's free-form note-graph structure.
• Notion: Notion is a much broader incumbent workspace used by millions for note-taking and personal knowledge bases. It overlaps WisdomTree at the note-storage layer but does not specialize in memory science / spaced repetition, making it adjacent rather than head-to-head.

Emerging players

• Tana: Tana is an emerging AI-powered knowledge graph tool with supertags, templates, and a structured outliner. It overlaps WisdomTree's knowledge-tree concept but is focused on outbound workflows and a professional audience rather than learning retention.
• Mem: Mem is an AI-first personal knowledge management app that auto-organizes notes and surfaces related content. It overlaps WisdomTree's "remember what you learn" positioning but does so via AI search/recall rather than memory-science primitives.

Direct peers

• Logseq: Logseq is an open-source, privacy-focused outliner and knowledge graph that emphasizes blocks, bi-directional links, and learning workflows. It targets a similar self-hosting / student / lifelong-learner audience as WisdomTree but with a developer-flavored positioning.
• Obsidian: Obsidian is a major knowledge-management app built around bi-directional links and a local Markdown graph. WisdomTree's Blocks-of-Wisdom + Knowledge Tree is a direct conceptual competitor, but Obsidian is much larger, local-first, and heavily plugin-extensible.
• Roam Research: Roam Research pioneered the bi-directional note-taking movement and is one of the canonical references for any note-graph tool. WisdomTree's "Bi-directional Links" feature competes with the same mental model pioneered by Roam, although Roam targets higher-end researchers and writers.
• RemNote: RemNote is the closest direct peer: a note-taking app that combines bi-directional linking, a knowledge graph, and built-in spaced-repetition flashcards for retention. WisdomTree replicates this exact notes-plus-SRS thesis with its own visual Knowledge Tree metaphor, making them near-direct substitutes in the same niche.
• Anki: Anki is the long-standing open-source gold standard for spaced-repetition flashcards. While WisdomTree's note-graph is broader, the SRS/learning-cards layer directly overlaps Anki, and Anki users are the most likely cross-shop segment for WisdomTree.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/wisdomtree.app
• Xx.com/wisdomtreeapp

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about WisdomTree