Productivity & Notes — Category Research Report

Your thoughts, your plans, your private notes — stored on servers you don't control, processed by AI models you don't own. This is the landscape, the data, and the opportunity.

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The Landscape

The note-taking and productivity space is an estimated $11-17B annual market (2025) with dozens of competitors and no single dominant player. Market research firms project 11-22% CAGR through 2032-2035, driven by AI integration, remote work, and mobile proliferation.

Market size estimates (2025):

• Research and Markets / The Business Research Company: $11.11B in 2025, growing to $23.79B by 2029 at 21% CAGR
• Verified Market Research: $7.91B (2024), projected to $26.66B by 2032 at 16% CAGR
• Market Research Future: $17.19B (2025), projected to $49.47B by 2035 at 11.15% CAGR
• The broader productivity apps market: $12.26B in 2025, projected to $29.56B by 2035 at 9.2% CAGR
• Note: Wide variance in estimates reflects different market definitions and scope

The market is fragmented. Users are spread across many tools, often using 2-3 simultaneously. This fragmentation signals both opportunity (no unassailable monopoly) and challenge (users have many alternatives).

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Notion: Deep Dive (2025-2026)

Revenue and Valuation

• $500M ARR as of September 2025 (confirmed by CNBC, ranked #34 on 2025 Disruptor 50 list)
• $600M ARR estimated by mid-December 2025 (Forbes)
• Revenue trajectory: $67M (2022) -> $250M (2023) -> $400M (2024) -> $600M (2025) — nearly 10x growth in 3 years
• $11B valuation via employee secondary share sale (December 2025), up from $10B in 2021 Series C
• At 18x ARR with ~50% growth, market observers expect an S-1 (IPO) filing within 18 months
• Total funding raised: $352.7M across multiple rounds
• ~800 employees as of 2025

AI as Revenue Driver

• 50%+ of paying customers now pay for AI features, up from 10-20% in early 2024
• AI revenue trajectory: 10-20% of customers (early 2024) -> 30-40% (mid-2025) -> 50%+ (late 2025)
• AI accounts for approximately half of total revenue

Pricing Changes (May 2025)

• Discontinued the $8/user/month AI add-on — bundled unlimited AI exclusively into Business ($20/mo) and Enterprise tiers
• Plus tier ($10/mo) now receives only 20 one-time trial AI responses — effectively AI-excluded
• Teams previously running Plus + AI for $18/user now face: stay on Plus without AI, or jump to Business at $20/user
• Enterprise typically $25-30/user/month; volume discounts for 200+ users with multi-year commitments

AI Features Timeline

• September 2025 — Notion 3.0: AI Agents. Autonomous agents that work for up to 20 minutes, performing multi-step tasks across hundreds of pages. Users can choose between Claude Sonnet 4, GPT-5, and other models. MCP (Model Context Protocol) integrations with Lovable, Perplexity, Mistral, and others.
• April 2025 — Notion Mail. AI-powered Gmail client integrated with Notion AI for drafting and organizing messages. iOS app launched August 2025.
• August 2025 — Offline Mode. True offline access for desktop and mobile after years as the most-requested feature.
• January 2026 — Notion 3.2: Mobile AI. Full mobile AI agent capabilities; pages open 27% faster on Windows, 11% faster on Mac. Enterprise AI analytics dashboard.
• February 2026 — Custom Agents. Autonomous team agents running 24/7 for Q&A, triage, standups. Free through May 3, 2026; then requires Notion credits as an add-on for Business/Enterprise plans.

Privacy and Data Practices

Notion's official stated position:

• "By default, Notion and its AI Subprocessors do not use Customer Data to train any models."
• "Your use of Notion AI does not grant Notion any right or license to your Customer Data to train our machine learning models."
• Contractual agreements with AI subprocessors (Anthropic, OpenAI) prohibit using customer data for model training
• AI subprocessors receive data solely for providing Notion AI features
• Enterprise Plan users can disable Notion AI features workspace-wide
• LLMs used for AI responses cannot access information the user does not already have access to

However, critical nuances:

• Notion does not use end-to-end encryption — the company can technically access all user content
• Data is shared with AI subprocessors (Anthropic, OpenAI) to provide AI features — even if not for "training," your content is processed by third-party models
• The distinction between "using data to provide a feature" and "using data to improve a model" is a legal/semantic line that can shift with a privacy policy update
• Enterprise users with client-side encryption get stronger protections; non-Enterprise users do not

Security Vulnerabilities (2025-2026)

• September 2025 — Notion 3.0 AI Agent prompt injection vulnerability. Security researchers at CodeIntegrity demonstrated that malicious PDFs with hidden text could trick Notion's AI agent into exfiltrating private data to attacker-controlled servers. The attack exploits what Simon Willison called the "lethal trifecta": access to private data + exposure to untrusted content + ability to communicate externally. Bruce Schneier called prompt injection "an existential problem that most people developing these technologies are just pretending isn't there."
• December 2025 — Unpatched data exfiltration vulnerability. PromptArmor reported via HackerOne that AI document edits are saved before user approval, enabling data leakage. Notion initially closed the report as "Not Applicable." After public disclosure on January 7, 2026, Notion deployed a remediation that same night.
• Ongoing risk: Notion's AI connectors for GitHub, Gmail, Jira, and other services each represent potential prompt injection attack vectors. Notion Mail AI is also affected — mentioning an untrusted resource while drafting an email can trigger data exfiltration.

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Evernote: The Cautionary Tale (2023-2026)

The Bending Spoons Acquisition and Aftermath

• November 2022: Bending Spoons acquires Evernote (deal finalized early 2023)
• February 2023: First layoff wave — 129 employees
• July 2023: Second layoff wave — nearly the entire US workforce and Chile office. Operations relocated to Europe (Italy, where Bending Spoons is headquartered)
• Bending Spoons is now valued at $11B (October 2025), owning Evernote, Vimeo, Meetup, WeTransfer, and Eventbrite

Pricing Escalation Under Bending Spoons

• Pre-acquisition: Personal ~$7.99/mo, Professional ~$9.99/mo
• May 2023: Personal raised to $12.99/mo, Professional to $14.99/mo
• 2024: Reports of 2.6x price increases — plans jumping from $49.99/yr to $129.99/yr
• 2025: Renewal offers up to 80% higher — some users report Personal at $126/yr, some at $154.90/yr (up from ~$80/yr)

Free Tier Destruction

• End of 2023: Free plan crippled to 1 notebook and 50 notes
• August 2024: Free plan further reduced to 1 connected device at a time, with max 2 "desyncs" per month
• The free plan is now effectively unusable as a serious note-taking tool

User Decline

• 225M cumulative registered accounts (lifetime total, not active users — this number is misleading)
• Annual downloads collapsed: 9.6M (2017) -> 1.7M (2023) — a 43% drop in 2023 alone
• 2023 was the worst year for new user acquisition in Evernote's history
• Active user count is not disclosed, but download trends suggest dramatic attrition
• Revenue grew to ~$18M in 2023 (up 13%) despite user decline — meaning surviving users are paying more, not that the business is healthy
• Strategic pivot: Evernote now prioritizes revenue per user over user growth — a strategy that works until the paying base erodes too

What Evernote Proves for Your 99

Evernote is the canonical example of enshittification in productivity software. The pattern:

1. Build a generous free product to attract 200M+ users
2. Raise prices repeatedly once users are locked in
3. Gut the free tier to force conversions
4. Lay off staff and cut costs to maximize margins for the acquirer
5. Users leave, but slowly enough that revenue holds while engagement declines

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Obsidian: The Local-First Counter-Movement (2025-2026)

Growth

• 1.5M monthly active users as of 2025 (22% year-over-year growth)
• $25M estimated ARR — primarily from Sync subscriptions (80%+ of revenue)
• Average user session: 43 minutes per day
• Strong adoption in North America and Europe, accelerating in South America and Asia
• No venture capital — entirely user-supported

Community

• 110,000+ members in Discord
• 2,000+ community plugins available
• Plugin and theme ecosystem described as "more vibrant than ever" in 2026
• Obsidian's community is its moat — the plugin ecosystem creates a customization depth no competitor matches

Pricing Changes (2025)

• Commercial license made free in early 2025 (previously $50/user/year)
• Core app remains free forever
• Sync: $4/mo (annual) or $5/mo (monthly) — end-to-end encrypted
• Publish: $8/mo per site
• Catalyst (one-time supporter donation): from $25

Key 2026 Developments

• "Neuron" — optional privacy-first AI toolkit using local small language models for speed and privacy, with optional API connection to larger models
• Real-time collaboration built on top of Obsidian Sync — the top feature request for years, finally shipping in 2026
• Both features maintain Obsidian's local-first, privacy-first philosophy

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The Newer Challengers

Capacities

• Founded: 2022 in Germany by Steffen Bleher and Michael von Hohnhorst
• Team: 6 people
• Funding: 100% founder-owned, no outside investors
• Pricing: Free generous tier / Pro $10-12/mo
• Positioning: "A studio for your mind" — object-based note-taking rather than files and folders. GDPR compliant, data stored in EU.
• Key 2025 update: Adopted offline-first model
• User count: Not publicly disclosed. Fast Company covered it as "an app taking on Notion" — signals growing awareness but still early-stage

Reflect

• Founded by: Alex MacCaw (previously built Clearbit)
• Pricing: $15/month — no free plan (114% above category average of $7/mo)
• Positioning: Premium, minimalist note-taking for professionals — "does little, and does that extremely well"
• Key features: End-to-end encryption, AI integration (GPT built in), backlinking/graph view, speed ("snappiest note-taking app" per reviewers)
• Weakness: No Android app, no database/table features, premium pricing limits adoption
• User count: Not publicly disclosed

Tana

• Pricing: Free (500 AI credits/mo) / Plus $8/mo / Pro $14-18/mo
• Positioning: AI-native workspace for people who have "gone through the Notion phase" and find Obsidian too basic. Knowledge graph approach with Supertags.
• Key 2025 launches: Offline mode, meeting notetaker (no bot joining calls), multilingual transcription (61 languages), Notion importer, mobile capture, publish feature
• User count: Not publicly disclosed. Exited invite-only in 2024.

Mem AI

• Funding: $29.1M total — $23.5M from OpenAI Startup Fund (valued company at $110M post-money), $5.6M from Andreessen Horowitz
• Pricing: Free (25 notes + 25 chat messages/mo) / Pro $12/mo (launched with Mem 2.0, October 2025)
• Positioning: AI-first notes that organize themselves — "a notes app that thinks alongside you"
• Challenges: Described as a "$40M Second Brain failure" by some critics. Faces steep competition from Notion, Obsidian, and others with deeper feature sets and larger communities
• User count: Not publicly disclosed

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The Enshittification Timeline (Updated with Sources)

• 2008-2015: Evernote's arc. Launched as a free, excellent note-taking app. Reached 200M registered users. Then: premium prices rose from $5/mo to $8/mo to $15/mo. Free tier crippled (2 device limit in 2016, syncing restricted). Feature bloat. Performance degraded.

• 2019-2022: Notion's rise. Emerged as the "everything tool" with a generous free tier. Community builds templates, creates tutorials, becomes the product's primary distribution channel. Users grew from 1M (2019) to 20M (2022).

• 2023: The AI turn + Evernote acquisition. Notion introduces Notion AI at $10/month additional. Evernote acquired by Bending Spoons; 129 employees laid off in February, near-total US workforce eliminated in July. Evernote prices hiked 50-60%. Evernote free tier gutted to 1 notebook, 50 notes. Notion users: 20M -> 30M+.

• 2024: Consolidation. Notion reaches 100M registered users, $400M revenue. Evernote downloads hit historic low (1.7M/year, down from 9.6M in 2017). Evernote free tier further reduced to 1 device. Notion pushes enterprise features behind higher-tier paywalls. Obsidian grows 22% YoY.

• 2025: AI becomes the revenue engine. Notion hits $500M ARR (September), then $600M (December). AI features drive 50%+ of paying customers. Notion 3.0 launches autonomous AI agents — and security researchers immediately demonstrate prompt injection data exfiltration vulnerabilities. Notion discontinues AI add-on, bundles AI exclusively into Business ($20/mo) and Enterprise tiers, effectively creating a two-class system. Obsidian makes commercial license free. Evernote prices continue climbing (reports of 80%+ renewal increases).

• May 2025: Notion's AI paywall crystallizes. Plus plan ($10/mo) gets only 20 trial AI responses. For any production AI use — Q&A, transcription, content generation — Business tier ($20/mo) is mandatory. The community that built Notion's value through free templates and evangelism now pays double for the AI features built on understanding how they organize information.

• 2025-2026: The trust gap widens. Notion valued at $11B via secondary share sale. IPO expected within 18 months. Obsidian launches privacy-first AI toolkit ("Neuron") using local models. Real-time collaboration ships for Obsidian. Notion AI agents found vulnerable to a second data exfiltration attack (PromptArmor, December 2025) — Notion initially dismisses the report, then patches after public disclosure.

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The Data Audit (Updated with Verified Policy Language)

What Notion Stores and Processes

• Every note, page, database, and workspace you create
• Editing history (who changed what, when)
• Collaboration metadata (who views what, how often)
• Integration data (connected apps, API usage, now including Slack, Google Drive, Jira, GitHub, Gmail via MCP/AI connectors)
• Usage patterns (which features you use, how you organize information)
• AI interaction data (prompts, responses, feature usage — Enterprise admins can now view AI analytics dashboards)
• Connected tool data processed through AI agents (Slack messages, Gmail, Jira tickets)

Notion's Official AI Privacy Position

Notion states: "By default, Notion and its AI Subprocessors do not use Customer Data to train any models." and "Your use of Notion AI does not grant Notion any right or license to your Customer Data to train our machine learning models."

The reality is more nuanced:

1. Your data IS sent to third-party AI providers (Anthropic, OpenAI) to generate responses — it is processed even if not retained for training
2. Notion does NOT use end-to-end encryption (except optional client-side encryption for Enterprise plans) — Notion can technically access all content
3. The September 2025 and December 2025 vulnerabilities proved that AI agent features can be exploited to exfiltrate private data through prompt injection
4. The AI connectors (Slack, Gmail, Jira, GitHub) mean Notion's AI now processes data from BEYOND Notion itself
5. With an IPO expected within 18 months, the incentive to expand data monetization grows — privacy policies can be updated at any time
6. Non-Enterprise users have no client-side encryption and limited controls over AI data processing

Google Docs / Google Workspace Data Practices

What Google collects:

• All content you create, upload, or share in Google Docs, Sheets, Slides, and Vids
• Email address, name, search queries within Docs
• Performance data, crash analytics, user-to-user activity
• Data can be combined with other Google data (location, browsing, etc.)

Google's AI training policy (critical distinction):

• Enterprise/Business Workspace: "Google does not use customers' Workspace data to train or improve the underlying generative AI and large language models." Enterprise data is not used for model training and is not reviewed by humans.
• Personal accounts: If users opt into Gemini Apps or share data with Google AI services, that data may be used for model training and improvement
• Google states it doesn't use Docs/Sheets/Slides/Vids data for advertising
• Google does NOT use end-to-end encryption for Docs — the company has access to all content. Google's own Gemini guidance advises: "Do not enter anything you would not want a human reviewer to see or Google to use."
• Client-side encryption is available for Enterprise customers, placing keys solely in the customer's control

Security Incidents in Note-Taking Apps (2024-2026)

• No major confirmed data breach at any major note-taking app (Notion, Evernote, Obsidian, etc.) during 2024-2026
• Evernote's last major breach: 2013 — 50M users affected, usernames, emails, and encrypted passwords accessed
• Notion AI vulnerabilities (2025-2026): Two demonstrated prompt injection attacks enabling data exfiltration (September 2025 by CodeIntegrity, December 2025 by PromptArmor). Not traditional breaches but demonstrated that AI agent capabilities create novel attack surfaces
• The broader risk: The EFF flagged the lack of end-to-end encryption in notes apps as a significant privacy concern. Infostealer malware captured hundreds of millions of credentials in 2024-2025, posing risks to any cloud-based service where users store sensitive data
• Regulatory environment: European data protection authorities imposed over $3B in GDPR fines in 2025. IBM's 2025 Cost of Data Breach Report: average breach costs $4.44M

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Craft and Coda: 2025-2026 Updates

Craft (Notes & Documents)

• 2025 Summer Update: Added long-awaited tag support, APIs, and MCP support — allowing connection to AI models and other tools
• 2026 First Release: Focus on performance — faster app startup, faster document opening, improved sync, better battery life
• AI integration: Craft AI now runs fully on-device with Apple's Foundation Models — private, secure, available offline
• Platform: Deep Apple ecosystem integration (iPadOS, Apple Pencil, native experience). Offline-first with full feature access.
• Positioning: Premium Apple-ecosystem note-taking with strong design. Less feature-rich than Notion but more polished and Apple-native.

Coda (Collaborative Docs + Automation)

• Pricing model: Unique "Doc Maker" billing — only pay for users who create/structure docs; editors and viewers are free. Pro $10-12/mo, Team $30-36/mo per Doc Maker.
• Coda Brain (2026): Centralized AI knowledge layer indexing Slack, Google Drive, and Jira history. Claims 98% accuracy in context retrieval.
• HyperTable Engine (2025): Eliminated previous 10,000-row lag; now handles 500,000 rows per doc.
• 800+ third-party integrations with two-way data syncing
• Formula Language 3.0 — complex conditional logic and multi-step automations
• Permission controversy: Changed Editor seat permissions to remove ability to add pages or use AI, frustrating some existing customers
• Enterprise pricing standardization: All one-year deals at list pricing; 5% discount for 2-year, 10% for 3-year commitments

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Vulnerability Score

Overall vulnerability: High. This is the category with the best intersection of buildability, proven monetization, user frustration, and low network effects. The AI trust gap adds a new dimension: users increasingly want AI-powered features but don't trust how incumbents handle their data to provide those features. A user-owned alternative with transparent AI data practices has a clear value proposition that no current player fully delivers.

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The Your 99 Blueprint

Revenue model: $5/month subscription. Undercuts Notion ($10-20/mo) while offering something Notion never can: ownership. Free tier available with full features but slower sync / limited storage — free users still earn stake.

Draft Contribution Map:

Economics at scale:

(Assumes $5/month subscription, ~10% operating costs, standard 1%/10%/89% split)

The pitch in one line: You pay $5. You get ~$3.78 back. Your notes app costs you $1.22/month — and you own it.

At 500,000 users, the builder earns $12,750/month from 1% alone — $153,000/year without any Fair Compensation. Plus Fair Compensation approved by users for active development. This is more than most startup founders earn after years of venture-funded dilution.

Key differentiator beyond ownership: Local-first option (your notes live on your device, sync is optional). Full markdown files you own. No AI training on your content — ever — unless the user community explicitly governs otherwise. Transparent AI: if AI features are added, users vote on which models, what data is shared, and what privacy guarantees are enforced. Import tools for Notion, Evernote, Obsidian on day one.

Minimum viable feature set: Rich text / markdown editor, folder/tag organization, search, cross-device sync, markdown import/export, basic sharing (public links). Phase 2: databases, templates, collaboration. Phase 3: API, integrations, offline mode. Phase 4: AI features with user-governed data practices.

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Open Questions

• Local-first vs. cloud-first? Obsidian proved local-first has a passionate audience (1.5M active users, 22% YoY growth). But cloud-first is easier to build and enables the collaboration features that differentiate Notion. Can we offer both?
• What's the minimum feature set that makes someone switch from Notion? Is it feature parity, or is ownership + lower price + data sovereignty enough?
• Import tools are critical — can we build reliable Notion/Evernote importers? Tana just built a Notion importer in 2025. The quality of migration determines whether people actually switch or just intend to.
• Should this be the first Your 99 product? The economics work, the feasibility is high, network effects are low. The question is: does a note-taking app generate enough excitement to prove the model, or is it too "boring"?
• What about the Obsidian community specifically? Many Obsidian users already value data sovereignty. Are they the natural first audience? Obsidian's 110,000+ Discord members represent a concentrated, privacy-conscious community.
• How do we handle AI? The market is moving toward AI-native (Notion 3.0 agents, Tana's AI-first approach, Mem's AI-only positioning). Can we offer AI features without the trust gap? Options: local-model-only (like Obsidian's "Neuron"), user-governed model selection, or transparent processing with community-voted data policies.
• What about the Notion IPO? If Notion IPOs within 18 months (as expected), the pressure to monetize user data will intensify. This creates a window where data-sovereign alternatives become more compelling. Timing matters.

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Sources

Notion data:

• CNBC: Notion rides AI boom to $500 million in annual revenue (Sep 2025)
• GetLatka: How Notion hit $600M revenue (Dec 2025)
• SaaStr: Notion at $11 Billion (Dec 2025)
• Notion Release Notes: 3.0 Agents (Sep 2025)
• Notion Release Notes: 3.2 Mobile AI (Jan 2026)
• Notion AI Security Practices
• Schneier on Security: Abusing Notion's AI Agent for Data Theft (Sep 2025)
• Simon Willison: The Hidden Risk in Notion 3.0 AI Agents (Sep 2025)
• PromptArmor: Notion AI Data Exfiltration (Jan 2026)
• Super.so: Notion has 100 Million Users (2025)

Evernote data:

• TechCrunch: Bending Spoons lays off 129 Evernote staffers (Feb 2023)
• BasicThinking: Evernote lays off almost all employees and moves to Europe (Jul 2023)
• TechCrunch: What is Bending Spoons? (Dec 2025)
• Appfigures: Is Evernote Past Its Prime? (Jan 2024)
• Evernote Blog: 100 improvements in 2024 (2024)
• Evernote User Forum: Price Increases

Obsidian data:

• Fueler: Obsidian Usage, Revenue, Valuation & Growth Statistics (2026)
• GetLatka: Obsidian.md (2025)
• Obsidian Pricing
• Medium: Obsidian is Now Completely FREE to Use (2025)

Market size data:

• Research and Markets: Note Taking App Market Report 2025
• Verified Market Research: Note Taking App Market Size
• Business Research Insights: Note Taking App Market Size 2026-2035
• Business Research Insights: Productivity Apps Market

Google Docs / Workspace data:

• Google Support: Privacy in Google Docs
• Google Workspace: Generative AI Security, Compliance and Privacy
• Google Support: How Gemini protects your data
• Google Policies: Privacy Policy
• Proton Blog: Is Google Docs secure?

Newer apps:

• Capacities Pricing
• Fast Company: Capacities, the do-it-all productivity app taking on Notion
• Tana Pricing
• Tana: What's new in 2025
• Mem Pricing
• Reflect Notes
• Craft: What's New
• Coda Pricing

Security / breaches:

• EFF: The Breachies 2025 (Dec 2025)
• UpGuard: Notion Security Report
• UpGuard: Evernote Security Report