iPhone Contacts, Calendar, Tasks, & Reminders Sync

iPhone Contacts, Calendar, Tasks, & Reminders Sync

I have done some searching for a definitive answer, but all posts were from 3 years ago.

Is it possibly to setup Zoho on iPhone as an "Exchange" account rather than "Other" and all items mentioned?

I must do this for my Gmail account as well, but I really want to delete my Gmail account, but contact/calendar syncing is really vital.

Thanks in advance!!!!!!!!!!!!