Android Browser, Chrome, and Firefox all support this feature at this point but not Safari or anything that uses WebKit. So while service workers are supported on iOS Safari, PWAs are relegated to being mere cached webpages. The manifest is probably more important than service workers because without it all you have is a webpage that is treated no differently from other web pages. A progressive web app is supposed to share characteristics with normal apps by definition and be recognized as such by the browser, which is still not the case in Safari.
So yes, there is still virtually no support for PWAs. There would be partial support if some manifest features were implemented, but currently it's not supported at all.
Safari supports service workers but without support for the Web App Manifest, hence no "Add to Homescreen", PWAs are basically crippled on iOS.
https://webkit.org/status/#specification-web-app-manifest https://developer.mozilla.org/en-US/docs/Web/Manifest
Android Browser, Chrome, and Firefox all support this feature at this point but not Safari or anything that uses WebKit. So while service workers are supported on iOS Safari, PWAs are relegated to being mere cached webpages. The manifest is probably more important than service workers because without it all you have is a webpage that is treated no differently from other web pages. A progressive web app is supposed to share characteristics with normal apps by definition and be recognized as such by the browser, which is still not the case in Safari.
So yes, there is still virtually no support for PWAs. There would be partial support if some manifest features were implemented, but currently it's not supported at all.