When you compile an application, you usually choose between below two modes:

Debug: Debug mode pads the executable FILE with extra information used for debugging purpose. After your application is bug-free and feature-complete, there's no LONGER any need to keep the debug information.

Release: Compiling in Release mode gives you a more compact (and even slightly FASTER) executable that doesn't include unnecessary internal debugging symbols

Note: Before submitting our windows app to windows store, You need to set target PLATFORM as ARM while creating .APPX in release mode because mobile phone have ARM processors so they will need .APPX build on ARM configuration. x86, X64 is for emulators only.

When you compile an application, you usually choose between below two modes:

Debug: Debug mode pads the executable file with extra information used for debugging purpose. After your application is bug-free and feature-complete, there's no longer any need to keep the debug information.

Release: Compiling in Release mode gives you a more compact (and even slightly faster) executable that doesn't include unnecessary internal debugging symbols

Note: Before submitting our windows app to windows store, You need to set target platform as ARM while creating .APPX in release mode because mobile phone have ARM processors so they will need .APPX build on ARM configuration. x86, X64 is for emulators only.