Google App Maker is no longer offered.
G Suite's low code development environment makes it easy to create apps that fill gaps. App Maker is available with G Suite Business Editions and Enterprise editions as well as G Suite for Education. IT professionals and enthusiasts can easily create apps that empower their teams using templates, drag-and drop UI design, and declarative data modelling. It doesn't matter if you're using Gmail, Calendar, or Sheets, it's easy to connect to the data and services that will make your apps more powerful. Apps Script can be used to access Google Cloud Platform or other third-party services. G Suite administrators have full visibility into which apps are running in their organization, who is using them, and who has permission to them.