A person photographing a large tree in a city 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.

Download on theApp Store

4.8 from early naturalistsFree · iPhone

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.

Naming a newly claimed tree in the Sylvo app

01 / 03

Spot a tree and make it yours

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

Pinning a tree on the community map in the Sylvo app

02 / 03

Add it to the community map

Save it on the map and share it with others.

Browsing nearby claimed trees in the Sylvo app

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

9:41

Olivia

Northern red oak · est. 1962

The thing about being an oak is the patience. I've been waiting since the Kennedy administration.

What were the squirrels like in 1972?

Bolder. They're more anxious now — too many delivery scooters.

Did you know my acorns from last fall are probably saplings somewhere along the river?

Ask Olivia something…

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

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.

Olivia — Northern red oak — Olivia. Northern red oak. Claimed Apr 2026.

Big Pete — Coast live oak — Big Pete. Coast live oak. Claimed Mar 2026.

Magnolia from the corner — Southern magnolia — Magnolia from the corner. Southern magnolia. Claimed May 2026.

The leaning one — London plane — The leaning one. London plane. Claimed Feb 2026.

Aunt Beverly — Sugar maple — Aunt Beverly. Sugar maple. Claimed Oct 2026.

Stoplight — Ginkgo biloba — Stoplight. Ginkgo biloba. Claimed Nov 2026.

Questions

Things people
often ask.

If you're curious about something not covered here, we'd genuinely love to hear from you.

hello@sylvo.app

Legal: Privacy Policy · Terms

Is Sylvo free?

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.

Do I really "own" the tree?

Does this help conservation?

Is there an Android version?

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