Is there a way to enter the email address, subject and message to prompt my end user to fill these details in? Thanks

Hi edwardos, I'm not really sure why an end user would need prompting to fill in anything. In either case (email us or share via email) you as the app creator fill in the Subject, To Address, or Message dependent on which screen s being used, and it should be fairly obvious what the end user needs to fill out on their own. Dependent on which screen is being used you probably don't want to pre-populte either the Message or the To Addresses. Those are things the end user should probably decide. I understand what you are asking for, just not why. Could you maybe clarify the intention of your request? It will help us better decide how to handle this.