Power Apps - Microsoft Power Platform
Power Apps are a Low Code application builder and is part of Microsoft's Power Platform. There are 2 version, model and canvas.
Model are built from database tables built in Dataverse, with minimum UI alterations but powerful data integration.
Canvas Apps are fully customisable with a WYSIWYG interface. Canvas app functionality is extended with PowerFX, the expression based language for the Power Platform
Bother versions simplify business app development, allowing users to build, share, and use apps tailored to their specific needs.