Android calendars -Jorte Android app

Going way off the standard streaming topics with this question. I use gmail for work and personal email accounts. On my PC I use Microsoft Outlook 365 signed into the gmail accounts. No problem there. On my Android phone/tablet I use the Jorte calendar app for e-mail. This app syncs all the gmail calendars just fine. Add an event on the phone and it shows on the tablet. However, I cannot get any calendar event posted to Outlook to show up also in Jorte on Android or vice versa.

There is a place in Jorte to log into the Microsoft account so that all Windows and Android devices sync. It just spins when I enter the MS account email.

Any solutions? Use another app that does this sync and write off my $30 Jorte premium annual fee (no response from Jorte Support)?