Visio Portable -

A robust cloud-based competitor that focuses on ease of use and cross-platform compatibility.

However, if you're looking for a more powerful or feature-rich diagramming tool, you may want to consider the desktop version of Visio or other alternatives.

For true on-the-go access, the Visio viewer is available on mobile platforms. While full editing capabilities are primarily reserved for the web and desktop apps, the mobile experience allows you to present and review diagrams during meetings or site visits. Why Professionals Seek Portability