Learn how to deploy your app from the Status Page.
When you are ready to deploy to your app, head over to the status page. From there, you'll be presented with a window called "Build Status" that displays the current status of your app and offers you the option to deploy.
Clicking on the "Deploy App" will deploy both parts of your app -- frontend and backend, if you are using a Mobile App Scaffold (see Which Scaffold Should I Choose?).
If you'd like to deploy just one part of your app, click on the downward arrow next to "Deploy App". This will give you the option of deploying just the Mobile App frontend or API backend at a time.
If you run into any trouble with deployment, be sure to use the status page to debug, and double check your migrations.