couldn't someone makeman app that synchronizes fields with every contact app? makes one centralized database that then pushes the new, updated, or deleted function to the contact being created, updated, or deleted? then no matter which of the 5-8 programs which require contact info to be updated, would all be updated at the same time? 
if i update or create from within crm, it gets pushed to every other app, likewise, if i update in contacts, zohocrm, zoho contacts, zoho appointments, zoho etc.. everything goes to one database, instead of allo having their own databases that are independent from each other?