This website uses the data provided by the Johns Hopkins University Center for Systems Science and Engineering (JHU CSSE). This data isn't perfect, for that reason, I wouldn't recommend using this website in any official manner.
The source code of this website is open-source. You can view the repository on GitHub.
If you have any suggestions or comments, feel free to send them to [email protected].
If you are looking for a web or mobile app developer, I might be available for freelance work. You can find out more about me on my website.
If possible, try using your device in landscape mode, or use a device with a larger screen.