There are two ways to download the 2021 Microsoft Visio desktop app: through the Microsoft Office website or through the Microsoft Store.
Microsoft Visio 2021 is a one-time-purchase desktop diagramming application for Windows that creates flowcharts, org charts, floor plans, network diagrams, and more. The 2021 version is part of Office’s perpetual-license releases (not a Microsoft 365 subscription). There are two main Visio 2021 SKUs: Visio Standard 2021 and Visio Professional 2021; Professional includes advanced templates, data linking, and collaboration features.