Lost connection to my sensor after getting new phone

I have lost the app. I have no idea what my user name is. I would like to reconnect with the sensor.
I have been able to see by looking at the map that it is still functioning.


Which app? PurpleAir doesn’t publish one of their own. Maybe you had the map page saved as an app icon?

On Apple devices that are/were signed into an Apple ID, you can look at your purchased apps through the App Store and re-download it from there (assuming a version exists that is compatible with your device).

Thank you for your response Doug. I now have the App and badge back on my phone and working properly.