How do I invite someone who isn't a Rolo user to sign-up?

How do I invite someone who isn't a Rolo user to sign-up?

You can invite your colleagues to join Rolo by following these simple steps:

• Get into your Rolo account and tap the + button on the bottom right corner of the page
• Click the 'Invite contacts to Rolo' button
• Enter the work emails of people you would like to invite to join Rolo
• Add a personalized message 
• Tap 'Send invitation'
• Those who are invited to join Rolo will receive an email in their inbox, asking them to sign-up 

*You will not automatically be connected with the people who you invited until they create an account and a connection request is sent (see adding contacts)