KnowTree
Structured Notes
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
◆ Organize notes in a "hierarchy" — and everything becomes clearer
With most note-taking apps, as information piles up,
it becomes hard to see how things are connected.
"KnowTree" organizes your notes hierarchically
with parent-child relationships.
Group related information together so you can always find it again.
---
◆ Key Features
[Tree Structure]
Create nodes with parent-child relationships.
Organize like "Main Topic → Subtopic → Details."
No limit on how deep you can go.
[Flexible Workflow]
Start from the big picture (top-down),
or jot down small notes and group them later (bottom-up) —
both approaches work great.
[Rich Content]
Supports Markdown, images, links, and code blocks.
Create notes that are clear and easy to read.
---
◆ Great For
• Systematically organizing what you've learned
• Structuring reading notes to match a book's outline
• Managing project information in a hierarchy
• Organizing your thoughts before writing
• Connecting scattered notes into a coherent structure
---
◆ Features
[Basic]
• Create, edit, and delete nodes
• Organize nodes with parent-child relationships
• Markdown support
• Search across all nodes
• Trash (recover accidentally deleted notes)
[Data Management]
• Create and restore backups
• Import data
[Premium]
• Create multiple trees
• Ad-free experience
• Premium color themes
• Add images within note content
• Export nodes
• Home screen widget
*Available with a Premium subscription (monthly)
---
◆ About Premium Plan
Unlock all features with a monthly subscription.
• Remove ads for a distraction-free experience
• Access more color themes
• Manage multiple trees for different purposes
• Add images directly to your notes
• Export in Markdown format
• Quick access from your home screen
You can cancel your subscription at any time.
---
EULA (Apple Standard License Agreement)
This app is subject to the Apple Media Services Standard End User License Agreement (Standard EULA).
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms of Use
Use of this app is subject to the following terms:
KnowTree Terms of Use: https://uconpa.com/chishikinoki/terms/
Privacy Policy
For information on how we handle user data:
KnowTree Privacy Policy: https://uconpa.com/chishikinoki/privacypolicy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added English language support! The app automatically switches based on your device language settings.
The developer, Ukon Ryohei, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ukon Ryohei
- Size
- 53.3 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- KnowTree Premium $4.99
- Copyright
- © 2026 uconpa