Google has launched a new tool called App Maker, which aims to make it easy for non-developers to create apps. It features a drag-and-drop interface that with tools for adding data from Google services like Google Maps, Contacts, Groups and G Suite. For those who have programming abilities, App Maker also has a scripting editor with many of the features you would find in a typical IDE.
Currently, App Maker is available through the Early Adopter Program for G Suite Business.