Description
PollenTracker is a free pollen and allergy decision tool covering 800+ cities across the US, UK, and Canada, searchable by city or ZIP code. Instead of showing raw numbers like most pollen apps, it translates the data into a simple three-way answer every morning: YES (go enjoy the outdoors), CAUTION (take precautions), or NO (stay inside today).
The tool combines live data from Google's Pollen Forecast API, Google Air Quality, and OpenWeather. Its decision algorithm weights pollen severity around 60%, air quality around 30%, and weather amplifiers such as wind speed around 10%. YES corresponds to low pollen with good air quality (AQI under 50), CAUTION to medium pollen or AQI 51-100, and NO to high or very high pollen or AQI 101+. Hourly breakdowns show which hours of the day are safest to head out.
PollenTracker tracks the three main pollen types that drive most allergy seasons - tree, grass, and weed - along with mold, and references National Allergy Bureau thresholds. It also offers an interactive pollen map with city rankings, a daily email option, and practical allergy guides for parents. Built by a dad for his allergic kids, the core features are free with no login and no ads.
PollenTracker's Core Features
Clear YES, CAUTION, or NO daily decision instead of raw numbers
Coverage of 800+ US, UK, and Canadian cities, searchable by city or ZIP code
Combined pollen count, air quality (AQI), and weather in one score
Live data from Google Pollen Forecast, Google Air Quality, and OpenWeather
Hourly breakdowns showing the safest hours to go outside
Interactive pollen map with city rankings by risk
Tracking of tree, grass, weed, and mold pollen with National Allergy Bureau thresholds
Optional daily email and free access with no login or ads
How to use PollenTracker?
Find your city: Search for your city or ZIP code across the 800+ supported locations.
Check today's answer: See the clear YES, CAUTION, or NO decision for the day.
Review the details: Look at the pollen count, air quality, and hourly breakdown to pick the safest time to go out.
Compare locations: Use the pollen map and city rankings to check conditions elsewhere, such as before a trip.
Subscribe for daily updates: Bookmark the site or sign up for the daily email so the check happens automatically each morning.
PollenTracker's Use Cases
- Plan outdoor time for allergic kids
- Time outdoor exercise
- Prepare for a trip
- Daily hayfever check






