Empower your team to start building and launching apps right away using pre-built templates, drag-and drop simplicity, and quick deployment.
With Power Apps, there are three ways to easily make an app :
Here’s how
Begin with a clean slate—with a little bit of structure to keep it easy.
Start from data
Integrate with SharePoint, Excel Online, SQL Server, Common Data Service, and more.
Start from template
Choose from dozens of templates to quickly create apps.
Reference Link:
https://www.sharepointdesigns.com/blog/ways-build-power-apps