Great, 2 Suggestions Though
I absolutely love this app to see my PurpleAir device, however I think you should consider adding a VOC/Gas section as most of the PurpleAir sensors have BME680/688 sensors in them. My other suggestion, maybe have a way to apply a conversion to the readings. It is a little annoying when the map and the app don’t agree. Apart from these 2 tiny things, this app is great and I would highly recommend it to all the PurpleAir users out there.