Tree Notes

Tree Notes is a privacy-friendly, offline note app that lets you organize ideas as a tree.

Features:

• Unlimited parent/child notes (outline)

• Clean tree view with indent, colored levels, branch lines, and icons/emoji

• Create, edit, delete; move a note to another branch

• Collapse/expand branches

• Pin important notes to the top

• Tags/categories for quick grouping

• Due date to keep track of deadlines

• Attach images and files; image preview, open/share attachments

• Detail screen shows content, children, and attachments

• Light/Dark/System themes

• Multi-language (EN, ZH, FR, ID, JA, KO, RU, ES, TH, VI)

• Fully offline; data stored locally (SQLite)

• Optional PIN lock for extra privacy

No account required. Fast and simple.