This App is for citizens of the functional urban areas of Parma in Italy, Katowice in Poland and Zugló, Budapest in Hungary and adresses the needs of subgroups that are especially susceptible to air pollution. Depending on the air pollution level a specific advice is given to the user on how to behave. The focus is on adaptation however advice for mitigation actions will also be included. Actions planned by the respective governments are inserted if they occur on a regular basis for the same air pollution threshold.