The term PWA may not have been coined until 2015, but you could definitely save a webpage to your home screen on i(Pad)OS at least as early as 2010. Granted, it

The term PWA may not have been coined until 2015, but you could definitely save a webpage to your home screen on i(Pad)OS at least as early as 2010. Granted, it was pretty limited, but you could put an icon on your screen, have it open a web view that was somewhat separate from Safari, store data with localstorage, and generally look and feel kinda mostly like a native app.