5 stars: I believe the app is generations ahead of anything available for both android and iOS. The only trick to know is to use the old interface. Even though the new one looks better it lacks the major function: retrospective data, so you can't distinguish pollution dynamics. (For devs: it is ok to have raw number for a widget, but modern phones are stupid large, so please leave historical data for the app itself)
5 stars: I've always thought about the air quality, but never had a clear idea about it. Now I have. The app works fine, it is plain and lean, I like it. Maybe the 24h prediction model could be improved in the sense of a smoother transition from the current state.
4 stars: App was great with old UI. Everything what I need was on first screen map, graphs. It was more readable. Right now I have map, and graphs separately. It will be geeat to back to old layout with new graphic. I love new graphic. Generally app was great if I watch on needed information. You lost one star only because new layout.
4 stars: A very useful app Unfortunately the widget on my homescreen often says
3 stars: Usefull application. However the interface including the map interface got worse after the latests updates with the new design. I cannot find anymore the buton to align the map rotation to North-South.
2 stars: Widgets are still broken. Can't set 2x1 size. In 2x2 there is a lot of unused empty space taken. Please fix that.
2 stars: App's widgets are too big (2x1...