Tree Notebook

What is Tree Notebook?

Tree Notebook is a note-taking and personal information manager designed around a tree-style structure of folders and notes. It helps users keep related information grouped in nested categories, which can be useful for research notes, reference material, to-do lists, and long-form personal records. The app separates data into a public area and a password-protected private area, giving users a simple way to store more sensitive notes alongside everyday content. Tree Notebook also supports searching, bookmarks, history, and attachments, which makes it practical for people who want more structure than a basic flat notes app. On Apple platforms, it is available through the App Store, and the product is published by Lenagames.

Key features

• Organize notes in a multi-level tree of folders and subfolders
• Store both public notes and password-protected private notes
• Attach additional content to notes and folders
• Search through stored information quickly
• Use bookmarks and history to return to important items
• Sync with companion versions over a local Wi-Fi network without needing internet access

Safety overview

Status: Mostly safe

Tree Notebook is a standard productivity app for storing personal notes. Access to your saved information is central to its purpose, and password protection for private data is a normal feature for this kind of app. As with any notes app, the main practical risk is the sensitivity of what you choose to store in it, so use a strong password for private content and keep backups if the information matters to you.

Recommendation: Keep Tree Notebook if you actively use it for structured note-taking or private personal records. If you no longer use the app, removing it is usually fine, but export or back up any notes you want to keep first because your stored content may become inaccessible after deletion.

Common paths

• /Applications/Tree Notebook.app

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