PWA is the more common of the two in our index: it runs on 14,874 websites against 1,490 for Smartsheet, and 222 sites use both. Counts come from real scans, not vendor claims.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
Smartsheet is a work management and collaborative spreadsheet platform.
222 sites run both PWA and Smartsheet. That is 15% of the sites using Smartsheet, the smaller of the two.
Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.