Mushroom Forecast.
Know before you go.
Boletus predicts where and when mushrooms are likely to grow — combining high-resolution satellite data (down to 30m) with real-time weather and a 5-day forecast.
Why do you need a Boletus app?
A wasted trip? That's the main problem foragers face.
You drive an hour. You know the forest, you know the season — and still come home with an almost empty basket.
Boletus knows the forest before you get there
Boletus combines data on soil, tree cover, and land cover with current weather, humidity, and temperature. Based on this, it assesses conditions separately for each mushroom species.
What makes us different?
Mushroom-specific and generic
A separate probability layer for each of 10 popular mushrooms. Porcini and chanterelles need different conditions to grow.
5-day forecast, not yesterday's news
Plan your trip before you take the day off — not after someone else already picked the spot.
Satellite-grade data
The same Copernicus and soil-classification data used by European agricultural agencies.
Your spots stay yours
Every score comes from environmental data and science patterns — not from other users' check-ins.
Top spots, ranked
Premium unlocks a ranked list of the best-scoring spots near you, based on current conditions and the 5-day forecast.
See the difference at a glance
From open app to full basket
Pick your species
Choose one of 10 popular mushroom species. Each one is analyzed according to its own environmental requirements.
Filter by quality
Choose the quality range you're interested in, and the map will only show the mushroom spots that match it.
Check the score
Check the condition score on a scale from 1 to 10 for any point on the map.
Plan ahead
Check the forecast for the next 5 days and pick the best time for your trip.
Mark your spots
Save your favorite areas privately and come back to them any time.
Track your spots
Open your favorites menu anytime to see how conditions are changing at the spots you've saved.
Coverage
Built for Europe
Seven countries live at launch, chosen for strong foraging culture and satellite data coverage — with Germany and Finland coming soon as data expands.
Built on the same scientific data used by soil scientists and forestry agencies
World Data Centre for Soils
Satellite monitoring
WRB soil classification standard
Science patterns: static + dynamic factors
See it for yourself.
Questions, answered
No. A field guide or identification app helps you work out which mushroom you've already found. Boletus is for planning your trip — it shows where and when conditions may be favorable for specific species.
A regular mushroom map usually shows places previously reported by users. Boletus analyzes current weather, humidity, temperature, soil type, and tree cover to assess current conditions and prepare a forecast for the next 5 days.
Yes. The app presents maps for individual species and highlights areas with conditions favorable for their occurrence. These aren't locations reported by other foragers, though — they're a forecast based on environmental data.
No. Every score on the map is calculated from satellite and weather data, not from other users checking in. Your saved areas and trip history stay private.
Seven live at launch: Poland, Czech Republic, Slovakia, Estonia, Latvia, Lithuania, and Hungary — chosen for strong foraging culture and satellite coverage. Germany and Finland are coming soon, with more markets as coverage expands.
It combines a slow-changing static layer (soil type, pH, tree species, canopy) that sets whether a location can support a species, and a fast-changing dynamic layer (moisture, temperature trends, season timing) refreshed every day. It's a probability score — think weather forecast, not guarantee.
Yes — the core features are free to use. Premium subscribers get full access to everything the app offers.
It's available now on Google Play.