Power Apps Function Reference

Here you'll find my working reference for Power Apps functions, the building blocks you reach for every time you shape data or logic in a canvas app. My goal isn't to replace Microsoft's documentation. It's to add the practical detail you pick up after using these functions on real screens, galleries, and forms. Each entry walks through one function in depth. I cover the counting family, so you'll see how the "Count" function differs from "CountA", "CountRows", and "CountIf". I dig into date math with the "DateAdd" and "DateDiff" functions, and show how "DateTimeValue" turns text into a value you can calculate with. For text work, I explain the "Concatenate" and "Concat" functions side by side, and I walk through "EndsWith" for pattern checks. For every function I lay out the syntax, a worked example, and the delegation warnings that show up at scale.