It’s great that you like the application and want others to use mysms! It’s possible to send invitations from all mysms apps:

• Open the contact list in the mysms app to show existing mysms friends as well as your other contacts.
• Next to the contact name of non-mysms users you’ll see the option “Invite friend”.
• In the Android apps you will find an option to invite your friends in the sidebar.

It’s that easy to share mysms with all your contacts.