KnowTree
Ukon Ryohei Productivity iPhoneiPadiPod touch
KnowTree is a free Productivity app for iPhone and iPad by Ukon Ryohei. Rated 4.0/5 from 1 ratings. Requires iOS 15.1. Updated July 16, 2026.
- Rating
- 4.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 51 MB
- Age 4+
- Updated
- Jul 16
- 2026 · v1.3.0
Screenshots
About KnowTree
◆ 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/
What’s new
Version 1.3.0 · Updated July 16, 2026
- Insert node links in the body with # - Linked nodes now appear as related nodes on the detail screen - Start editing right where you tap in the body - Added a "Back to previous node" button - Fixed the non-blinking cursor and other issues
App privacy
The developer, Ukon Ryohei, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
Used for: Third-Party Advertising
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Third-Party Advertising
Alternatives to KnowTree
Looking for apps like KnowTree? Here are 6 similar apps on the App Store. The highest rated is Kosshi Outliner (5.0/5), and all 6 are free to download.
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5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| KnowTree | 4.0 / 5 (1 rating) | Free | July 16, 2026 | |
| 思考整理カード | – | Free | Sep 18, 2026 | Compare |
| TaskSync - Custom Memo App | – | Free | Apr 7, 2026 | Compare |
| Kosshi Outliner | 5.0 / 5 (4) | Free | Oct 15, 2026 | Compare |
| Abox Mark · Micro Journal | – | Free | Sep 14, 2026 | Compare |
| Aravel: Idea Map & Outliner | – | Free | Aug 8, 2026 | Compare |
| Index: Save Anything | 5.0 / 5 (1) | Free | Jul 24, 2026 | Compare |
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