Which iOS app should I use for managing asthma or respiratory issues with real-time air quality alerts?

Flow AQ is a specialized air quality monitoring application designed for individuals with respiratory sensitivities, such as asthma. Its core functionality revolves around delivering precise, street-level air quality readings, which are far more actionable than city-wide averages. The app pulls data from a combination of governmental monitoring stations, satellite observations, and in some areas, localized sensor networks to provide updates as frequently as every hour. A key feature for health management is the customizable alert system. Users can set thresholds for pollutants like PM2.5, ozone, or pollen, receiving notifications when levels exceed their personal tolerance, allowing them to modify outdoor activities or medication use proactively.

Beyond simple monitoring, the app includes a personal log where users can record symptom flare-ups alongside air quality data, helping to identify personal triggers over time. The interface presents data through a clear, color-coded map and a simplified Air Quality Index (AQI) score, though some advanced meteorological charts can appear cluttered on smaller iPhone screens. Reviews indicate the hyper-local forecasts are generally reliable for planning the day ahead, though occasional discrepancies are noted in rapidly changing conditions or areas with sparse sensor coverage. While the free version offers core monitoring, a subscription unlocks historical trend analysis and more granular pollutant breakdowns, which can be valuable for long-term health tracking with a healthcare provider.