What you breathe, at a glance.
Your city's index in real time, the pollutants behind the number, and the weather that explains it. A level, an explanation, a piece of advice. No account, no sign-up.
Coming soon to iOS and Android, in twenty languages.
- Real-time index
- Detailed pollutants
- Forecasts
- Map and ranking
- Pollen
- No account
A number — and above all, what it means
An index with no explanation is of little use. The app tells you where today's pollution comes from, what it changes for you, and when to head outside.
The index, in real time
Your city's level, continuously updated, with the pollutant responsible and its concentration: fine particles, nitrogen dioxide, ozone, sulphur dioxide.
The weather that explains it
Wind disperses particles, heat manufactures ozone, rain washes the air. A discreet strip ties each change in the index to its cause, in one sentence.
Map and ranking
A pollution layer over the map, monitoring stations where they exist, and a ranking of cities around the world to place your own.
Today's pollen
Alder, birch, grass, mugwort, olive, ragweed: the level for each family, so you can see the difficult days coming.
Alerts that warn you
A notification when the air degrades in one of your cities — and another when it turns good again. You set the threshold, the app keeps watch.
Seven-day forecasts
The whole week, with the best window to run or air the place. Twelve months of history and CSV export of your readings.
What you see when you open the app
Five days, hour by hour, and the moment the air becomes breathable again.
The window to go out, and what you have breathed in since this morning.
Every concentration, set against the World Health Organization guideline.
Pollution seen from the sky, anywhere in the world.
Three steps, and you're set
Open the app
No account to create, no email to give. Allow location, or simply pick a city: the index appears.
Understand the day
The level, the pollutant responsible, the weather behind it and a clear piece of advice: go out now, or rather this evening.
Keep an eye on it
Put a widget on your home screen, follow your cities, and let alerts warn you when the air changes.