Hi, Tree

Hi, Tree turns the trees you walk past into named places.


Spot a tree. Take a photo. Give it a personal name and pin it on a community map of monumental trees. The first person to claim each tree becomes its naturalist — and once it's yours, it's yours.


A small, slow collection.


Hi, Tree is a naturalist's notebook for the world's trees. Build a personal collection one walk at a time. Open the map and discover the trees other people have already loved — the oak in front of someone's grandmother's house, the cedar on the edge of a park, the tree at the bottom of your street that someone gave a name to before you walked past it.


Tree Chat — your AI naturalist companion.


Tap any tree you've claimed and ask. Hi, Tree uses AI to identify the species from your photo and surface the things a curious naturalist would want to know — likely age, regional history, seasonal behaviour, what to look for next time. AI suggestions are best-effort, not gospel; check anything you'd act on.


A living record, written by everyone.


Trees in Hi, Tree aren't frozen the moment they're claimed. Add photo updates as the tree changes through the seasons. Leave a comment on a tree someone else claimed, and the owner can reply. Tap a heart to like a tree you love — its naturalist gets a quiet push notification. The trees you love become part of a shared, living record — one anyone on earth can walk up to and listen to.


What you can do with Hi, Tree


• Photograph and claim a tree on your walk
• Name it, write a field note, and pin it on the map
• Build a personal collection of trees that mean something to you
• Discover trees other naturalists have claimed near you
• Comment on others' trees and reply to comments on yours
• Add fresh photos of any tree as the seasons change
• Like trees you love and get push notifications when yours are liked
• Ask Tree Chat about species, age, and seasonal changes
• Share a beautifully composed specimen card with friends


For people who notice trees.


Hi, Tree isn't a research dataset and we don't pretend to do conservation work directly. It's a tool for paying attention. We think attention is upstream of caring, and caring is upstream of action.


Free. iPhone-only for now.


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About claiming: claiming a tree on Hi, Tree is a personal and community gesture, not a legal one. Nobody owns a tree. Think of it the way you'd think of naming a star — a small ritual of attention.


Privacy: we don't sell your data and don't run advertising. Full policy at hitree.app/privacy-policy.


Questions? hello@hitree.app