I think you may be confused (and I may have done a poor job explaining). BDK Native is a wrapping service that is offered to make your Native Bubble App a Native App for use in iOS App Store and Google Play Store… it’s your web app but available as a native app download on those stores. As part of BDK Native, they offer additional native features, one of which is pulling contacts. A couple of additional plugins got to using those contacts that were pulled in a more advanced way.
It cannot pull contacts as a web app though. Lots of discussion on the board (from my previous research) where a web-based app cannot access local data on a device. It makes sense that it wouldn’t. You’d need to wrap it through that Jasonelle thing you found above, or use a service like BDK Native.
Hope that’s more clear for you.