Comparison

ThreeNote vs ContextorAI

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

Head to head
About

ThreeNote

Features
Read full description

Your Personal Knowledge Forest Tired of scattered notes and disorganized thoughts? TreeNote is here to help you cultivate a thriving ecosystem of ideas. With its intuitive tree-like structure, TreeNote allows you to: Create Hierarchies: Organize your notes in a logical, branching structure. Link Related Concepts: Connect ideas across different branches with ease. Quick Navigation: Zoom in and out of your knowledge tree effortlessly. Mobile-Friendly: Access your ideas anytime, anywhere on your iOS device. Secure: Keep your thoughts safe with local storage. Easy Sharing: Export your data for backup or sharing. Key Features: • Unlimited nested levels for complex hierarchies • Rich text editing for detailed notes • Quick add for rapid idea capture • Search functionality to find information fast • Customizable themes to suit your style Data Export and Backup: • Export your entire database as a SQLite file for comprehensive backups • Generate a human-readable text file of your notes' structure and content • Email both SQLite and text files directly from the app for easy sharing and safekeeping Whether you're a student organizing study materials, a professional managing projects, or a creative mind mapping out stories, TreeNote adapts to your needs. Start planting your ideas today and watch your knowledge grow!

About

ContextorAI

This app transforms your notes into a personalized knowledge base powered by AI. Chat with an AI that understands your context and previous research, ensuring nothing gets lost. Capture anything, organize smartly with auto-generated tags, and access your knowledge across devices.

Highlights
  • Personalized AI knowledge base
  • Capture notes, photos, and text from images
  • AI chat with your notes as context
  • End-to-end encrypted private notes
  • Instant sync between iPhone and Mac
  • Automatic tag and title generation
  • Search text within images
Read full description

ContextorAI turns your notes into a personal knowledge base your AI actually knows about. Most note apps store your thoughts and leave them there. ContextorAI connects them to AI — when you chat, the AI already knows your context, your previous research, your conclusions. Nothing gets lost between sessions. CAPTURE ANYTHING Write notes, take photos, Text from images is extracted automatically so everything becomes searchable. AI THAT KNOWS YOU Chat with AI using your notes as context. Ask questions about your own knowledge base. The AI answers based on what you have saved, not just general knowledge. PRIVATE BY DEFAULT Private notes are end-to-end encrypted. Nobody can read them but you, not even us.  Cloud notes are used for AI features like semantic search and auto-tagging. WORKS EVERYWHERE Notes sync instantly between iPhone and Mac. Start on your phone, continue on your Mac. SMART ORGANIZATION Tags and titles are generated automatically. Search finds text inside images too. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ThreeNote1 screens
ContextorAI4 screens

Verdict

The call

The clearest difference is in-app purchases: ThreeNote at none against ContextorAI's 4. ThreeNote also leads on update cadence (daily vs every 3 weeks). On price, ads, device support and iOS requirement 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. ContextorAI sells 4 in-app purchases, starting at $9.99 per month. ThreeNote asks for nothing beyond the download.

UpkeepUpdate frequency

ThreeNote ships an update daily, ContextorAI every 3 weeks. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

Scorecard2 real differences · 7 level
ThreeNote versus ContextorAI: the parameters behind the verdict, then further details
ParameterThreeNoteContextorAI
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyDaily — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.616.0 — better
Further details — not scored
Size1 MB98 MB
Age rating4+4+
DeveloperJouni ErolaCoiner.Cab Corp

In-app purchases

None

ThreeNote

No in-app purchases

4 purchases

ContextorAI

Subscriptions4
  • ContextorAI$9.991 Month
  • ContextorAI$19.991 Month
  • ContextorAI$79.991 Year
Show 1 more
  • ContextorAI Pro$149.991 Year

Questions

Is ThreeNote free?
ThreeNote is free to download, with no in-app purchases.
Is ContextorAI free?
ContextorAI is free to download, with in-app purchases available.
Do ThreeNote or ContextorAI have ads?
Neither ThreeNote nor ContextorAI shows ads.
Which is updated more often, ThreeNote or ContextorAI?
ThreeNote ships an update daily, and ContextorAI every 3 weeks. Most recently, ThreeNote was updated on October 2, 2026 and ContextorAI on September 29, 2026.

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