Weather forecast - air quality

This is a free app that tried to have a good and userfriendly design. It provides users with a four-day forecast and air quality. there is a possibility to search city names in every language. Each day has a separate page of information, a five-day wind forecast with the direction of the wind was provided, and you can see the sunrise and sunset with the duration of the day with an animated chart. On the air quality page, you can see some recommendations based on the air quality. Also, there are alarm images that show the number of pollutants with different colors and a chart that shows the next four-days air quality with the amount of each pollutant. On the settings page you can change the temperature unit to each centigrade, denoted as °C), the Fahrenheit scale (denoted as °F), and the Kelvin scale (denoted as K), the wind speed unit to each km/h or m/s, the visibility to each km or m. You can save your city name and each time you can easily delete it by dragging its name to the left or right. There is a possibility for you to find your location by clicking on the button location. I used some advertisements in the app which covered the cost of later development and do not annoy the user at all.