How is PollenRadar different from other pollen apps? +
Most pollen apps show regional forecasts (e.g., "Hessen: birch medium"). PollenRadar calculates your exposure based on the actual trees near you, current wind direction and speed, recent rainfall, and your personal sensitivities. It's hyperlocal, not regional.
Where does the tree data come from? +
We combine data from OpenStreetMap, municipal tree registries, iNaturalist observations, AI satellite analysis, and community contributions. You can also add trees yourself and vote on others' observations to improve accuracy.
Is the app available on iOS and Android? +
PollenRadar works as a Progressive Web App (PWA) in any browser right now — add it to your home screen for the full app experience. A native iOS app via the App Store is coming soon. Android will follow.
Do I need an account to use PollenRadar? +
No account is needed for basic use. Your data is stored locally on your device. If you want to sync across devices or subscribe to Pro/Premium, you can link an email address.
How accurate is the exposure score? +
The score is based on real tree positions, real-time wind data from DWD weather stations, and current weather conditions. Accuracy depends on tree coverage in your area — the more trees mapped (by you and the community), the more accurate your score becomes.
Is my data private? +
Yes. Your location and symptom data stays on your device unless you explicitly choose to sync. We never sell personal data. Community tree contributions are public by nature (they're about trees, not people).
What areas are covered? +
PollenRadar works worldwide for the map and weather features. DWD regional pollen forecasts are available for Germany. We're working on integrating pollen data from other countries' meteorological services.