No, Calendarspots cannot be downloaded.
Simply open your browser and type in the name of your platform: xxxx.calendarspots.com to access your platform.
Once on the page, click on the following button to log in:
By accessing through this button, with your login email and password you should be able to use Calendarspots on your phone (it is important to note that some functions such as forms are not available in this version, but only in the computer version).