|Flows available in: Enterprise, Performance, Unlimited, and Developer Editions|
Previously, you could add a flow to the Salesforce1 navigation menu by embedding it in a Visualforce tab. But that meant the page was styled like the Salesforce Classic interface. By adding flows to App Home pages in the Lightning App Builder, you get the Lightning styling for free!
When the App Home page is ready to go, remember to activate it. This step let’s you add the new page to the Salesforce1 navigation menu so your users can access the flow.