If you want to interact on the App it is currently available through WIX.
Google Play
https://play.google.com/store/apps/details?id=com.wix.android&hl=en_US
Apple Store
https://apps.apple.com/us/app/wix/id1099748482
You can receive notifications on your phone when you are not on the website if you download the app.
The website will suggest that you add it when add a post on your phone through the website and not the app at some point.