This post gets me excited for the future of Forms in SharePoint and Office 365, with Microsoft Power Apps now available you can quickly and easily start building new forms in your browser, here is a link to the Microsoft Power Apps Website.

https://powerapps.microsoft.com/en-us/tutorials/generate-app-from-sharepoint-list-interface

This will give you a step by step guide to using PowerApps within SharePoint 2013 in Office 365. Our new PowerApps Training Courses will Launch in January 2017.