I've just switched from Blackberry to Samsung G3 mini. The Blackberry calendar allowed me to send meeting invites to clients, which they could accept or decline and I got notified of their response. I can't do this on S Planner, which comes on my new android handset. It is really just a personal calendar. I can send invites out but clients don't have the option to accept or decline and I don't know what their response is. Is there an app I can use? I've tried looking at other discussions and as I'm not very savvy I risk downloading the wrong thing. We have use Office 365 for our email.