Using Microsoft power apps canvas you can design and build a business app without writing a single line of traditional programming language code such as c#.
You can design the app by dragging and dropping the elements onto a canvas, also you can write the formula and calculation using excel-like expressions like SUM, ABS, IF, Switch etc.
Microsoft Power Apps-
Create a canvas app in Power Apps
Connect SQL Server to Power Apps
Connect a SharePoint List to Power Apps
Power Apps Get Current User Details – Office 365 Users
Creating Rounded Images in PowerApps
Highlight Selected Row in Power Apps Gallery