A magnificent oak tree in a sunlit public park
A naturalist's notebook for the world's trees

Spot a tree.
Name it. It's yours.

Claim the trees you love. Discover the ones already on the map. Sylvo turns the trees you walk past into a quiet, growing collection of stories — yours and a community's.

Download on theApp Store
4.8 from early naturalistsFree to download
How it works

Three small acts of attention.

Sylvo is shaped around a slow, simple loop: notice, claim, return. The same three steps the app teaches you on day one.

01 / 03

Spot a tree and make it yours

Notice a tree you like. Take a photo, name it, and claim it.

02 / 03

Add it to the community map

Save it on the map and share it with others.

03 / 03

Create a forest of stories

Discover trees claimed by others, and add photos and field notes.

Tree Chat

Every tree has
something to say.

Once you've claimed a tree, you can ask it about itself. Tree Chat is a quiet ritual — not a chatbot gimmick. It's a small, considered space to wonder out loud about something that's been quietly outliving us.

"The thing about being an oak is the patience. I've been waiting since the Kennedy administration."
— Olivia, a Northern red oak in Highland Park
Grounded in your tree's species & location
The community map

Claimed by people, all over the world.

Every pin is someone's noticed tree. The map grows with each claim — a slow, distributed atlas of attention.

Aerial view of a public park with tree canopies, lawns, paths and a small pond
14,820
trees claimed
3,200+
naturalists
42
countries
1,160
species spotted
A leaderboard ranks the most active naturalists — but Sylvo isn't a contest. The point is the noticing, not the score.
Field-note moments

A few trees, recently noticed.

Questions

Things people
often ask.

For the legal details, see our Privacy Policy and Terms.

Yes — Sylvo is free to download and use. We're working on a Pro tier with extras like richer Tree Chat and unlimited field notes, but the core experience will always be free.

Start a small, slow collection.

Sylvo is on iPhone. Pick a tree on your walk home today.

Download on theApp Store