I'm testing the free version of Calephant, since I use several devices (Android, Windows, Ubuntu). I need a central agenda which I can reach from all devices. Is Calephant the answer or is there another way which uses Calephant?
I have checked the application, but I don't see anything related to Windows or Ubuntu. In this case, the software might not be available for multi-platforms. However, for all the platforms you have mentioned, there is Google Calendar. The calendar can be installed on Android and access through all the remaining operating systems using a web browser.
Google Calendar: https://www.google.com/calendar
