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Free game for iOS and Android

Your neighborhood is your mission.

Scan the trees around you, take the owl's daily topic at EcoSchool, and report litter, hazards or ragweed you spot in your neighborhood. Each report becomes a mission on the map that others can pick up too. Stay four weeks in Rainforest, the top league, and we plant a real tree with your name.

Free · iOS and Android · 5 languages · 41,426 trees already on the map

41,426

trees on the map

20,273

protected trees

1,425

rangers

3,363

litter reports

548

hazard reports

648

ragweed reports

Scroll down, the forest grows

News

What's happening

Tree plantingOctober 31, 2026

The first PicusGO planting in Sirač

We plant on 30 and 31 October, and the main event is on Saturday, 31 October, from 12:00 to 14:00 at the kindergarten in Sirač. We plant four trees at the kindergarten, and the press is coming too. The planting is open to everyone, so feel free to come.

From Rainforest, these rangers get their own tree

danijelpop
Lavanda
robi0205
robi0205 +1
Jelenko
BMW
Banjaluka
Josip Žuna
Ivan Žuna
Aronija

Their tree shows up in the app too.

If you're in Rainforest and want your tree planted in Sirač too, get in touch.

Get in touch

Follow us on social media

The video loads from TikTok only after a click.

Trees around the world

From your street to another continent.

Every dot is a real tree someone photographed. They're densest in Croatia and Bavaria, and the first dots are lighting up in the Americas.

How it works

The game starts outside your door.

Outside your building there's a linden nobody looks after, and ragweed is coming up by the school fence. Tomorrow someone from the neighborhood will pull a bag of trash out of the bushes. In PicusGO all of that goes on the map, and you earn points for it.

Scan

Snap the crown, the bark and a leaf, and Picus recognizes the species. The tree gets its spot on the map, and you get its card.

Protect

Take the tree under your protection and become its guardian. Then craft a card from it, styled your way.

Learn

Every day the owl at EcoSchool brings a new topic. Each topic you pass goes into your EcoCertificate.

Act

Report litter, a hazard or ragweed, or deal with it yourself. Every report becomes a mission on the map.

Every step earns you EIT, the points in the game. They can't be bought and aren't money, and you spend them in the app, for example to protect a tree.

Look inside

Everything you see is real.

These are screenshots from the app, with trees and people from our neighborhoods.

EcoSchool, the daily quiz with the owl teacher

Tree of the Day, voting for the tree of the day

Green wave with trees and protections from invited players

EcoSchoolA new topic every day and three hearts, so guessing won't get you far.

Living map

Your neighborhood is already on the map.

41,426 trees are already on the living map. Some have a guardian, others are still waiting. Look for the one outside your building.

See it in the app

Ranger station

A report from the street becomes a mission.

On the way to school you spot ragweed by the fence. You know it from EcoSchool, so you pull it out on a short video, or you report it and it becomes a mission on the map. The next day someone from the neighborhood confirms it or clears it, and everyone earns EIT for their part. We also pass reports on to the local authorities.

LearnFind out what ragweed is and which bin takes what.
ReportA photo and a location, and Picus rates how serious it is.
Clean upPick up litter or pull ragweed, with a short video as proof.
RewardEIT arrives right away, with a bonus for bigger dumps.

Join us

Ranger station with reports of litter, hazards and ragweed

EcoSchool

Something new about nature, every day.

Every day the owl brings a new topic, from rivers and birds to waste and invasive species. Ten questions, three hearts, and more and more short video lessons. A hundred passed topics complete your EcoCertificate.

If you know why ragweed is a problem, you're more likely to pull it out. One topic takes a few minutes a day.

Pupils can take the daily topic as a lesson opener.
Students fit it in between lectures.
Employees take a daily quiz that counts toward the company ESG report.

Take the topic in the app

Leagues and leaderboards

Seven leagues, from Seed to Rainforest.

Points add up each week, and the best players move up a league. There are also leaderboards for your neighborhood, city and country.

See the leaderboards in the app

Valley of Games

Play and learn to sort your waste.

In Hedgehog Run you have a few seconds to pick the bin: the jar goes in green, the yogurt cup in yellow, the banana peel in brown. Get it wrong and the hedgehog shows you the right bin. There's also Forest Flight and Owl's Challenge, and the leaderboard starts fresh every day.

Play in the app

Valley of Games with Forest Flight and Hedgehog Run

Rainforest reward

From the screen to the soil.

Stay four weeks in a row in Rainforest, the top league, and we plant a real tree. You can suggest the spot, say by a school or in your village, and the plaque will carry your name. 9 rangers have earned their tree so far, and the next planting is on Saturday, 31 October 2026, in Sirač.

Rainforest reward, a real tree with a name on the plaque

Every new run in Rainforest, even with breaks, brings one more tree.

Install the app

Green wave

Invite someone and you both get points.

40,000EIT for both of you

plus +80% EIT for 7 days and 3 card frames

As soon as the person you invite signs up, you both get 80% more EIT for seven days. When they scan their first tree, each of you gets another 40,000 EIT and three card frames.

Invite screen with rewards for both people

live

As of today

This is what rangers have done so far.

41,426

trees on the map

20,273

protected trees

1,425

rangers

3,363

litter reports

548

hazard reports

648

ragweed reports

284.8M

EIT in rangers' accounts

EIT are points in the game. You earn them by looking after nature, and they can't be bought.

Who PicusGO is for

One story, three roles.

Play and fun

Cards made from the trees you photograph

Every tree you photograph becomes a card, from common to mythic. Between walks you can play the owl's quiz or Hedgehog Run, or compete in the weekly league.

Download and play

Caring for nature

Learn and clean up your neighborhood

At EcoSchool you find out why ragweed is a problem and how to pull it out by the root. You report litter and hazards, and other rangers confirm or clean them up. Four weeks in Rainforest earn you a real tree with your name on the plaque.

Become a ranger

Cities, schools and companies

A report on what happens on the ground

Your people take topics at EcoSchool, then report and clean up what they find outside. You get the map, the reports and a summary, and you can plant trees in your name through us.

Get in touch

Living collection

Real trees, captured in cards.

Every card is made from real photos of one tree, and its rarity depends on the species and the quality of the photos.

Let's work together

PicusGO for cities, schools and companies.

Every action in PicusGO is saved with a photo, a location and a date. We turn that into a map and a report for your city, school or company.

Cities and municipalities

Rangers scan the trees in your city or municipality, so you get a map of your greenery and an overview of its condition, useful for care and preservation. The same people keep the place clean: they report litter, hazards and ragweed, with a photo and location, and learn at EcoSchool along the way. Let's start with a pilot.

Learn more Let's talk

Companies and ESG

PicusGO is a platform where ESG is more than a number in a report. Employees learn through the game and quizzes, pick up litter, report hazards and scan trees, so environmental awareness comes from what they actually do. The company gets a report for it, and we can also organize special events for your team and tree planting within the PicusGO platform.

Learn more Let's set up a pilot

Schools and universities

We offer pupils and students a platform where they learn environmental awareness through the game and quizzes, and put it to use right away: they scan trees and follow their health, and report hazards and litter around the school. We're open to partnerships with educational institutions, from kindergartens to universities.

Learn more Bring your school

Investors

PicusGO offers a new way of relating to the nature around us: a game that brings people back to the trees in their neighborhood, and gives cities, schools and companies data and a tool for real change. The app is on the App Store and Google Play, the first tree planting is scheduled, and we're building an ESG service with companies. If you'd like to grow with us, we'll gladly show you the numbers, the plan and the team.

Learn more Write to us

We reply personally.

Team

The people behind the project

The project is run by a university professor of forest ecology, two people from data and software, and a PhD in entrepreneurship and EU funding.

Stjepan Mikac, PhD

Forest ecology & climate

Scientist and professor with 20+ years in forest ecology and climate change. Head of the Department of Forest Ecology and Silviculture at the Faculty of Forestry in Zagreb and author of numerous papers on forest growth and resilience. Involved in the CroFEM, MEMORIE and BIOFORMA projects.

Ivan Žuna

Founder & director, Agilos IT

Founder and director of Agilos IT, a company working on data warehousing (DWH), business intelligence (BI) and data management. He works with large financial institutions on data migrations and connecting systems, and advises and mentors company owners and boards.

Milica Projić, PhD

Entrepreneurship & EU funds

For more than 20 years she has worked with entrepreneurs, startups and EU-funded projects. As an advisor she helps company boards with growth plans, getting ready for investors and organizing their teams.

Nikola Rimac

Full-stack dev · Data & ML

Scientist and engineer. Before PicusGO he worked on machine learning models for industry, and now he builds the PicusGO app and backend.

Your first tree is waiting outside your door.

Download PicusGO for free and scan your first tree. Stay four weeks in Rainforest and we plant a real tree with your name.

Scan and downloadPoint your phone camera at the code and your store will open.