Mobile App is there a way for the notifications to pop up for scheduled Calls Meetings?

We've bee using SugarCRM for a number of years and have only just started using the latest version of the Mobile App.

We can only get our Sales Consultants to use the App if they can get notifications of scheduled Calls and Meetings but the popup functionality only seems to work through the web login and they have to be signed in beforehand for it to pop up which defeats the purpose.

Is this possible on the Mobile App?