As part of my preparation for a trip to Vietnam (now postponed for obvious reasons), a thread on an international board suggested that the "Line" App was popular with Vietnamese women and a good way to meet them. I've installed the App on my iPhone, and have gotten several "friend" requests from women close by. So far, none appear to be providers, but I'm wondering if any women in the USA use this App.

It's also very popular in Japan and Thailand. I have it on my phone and I keep in touch with several Thai providers in the DC/VA area, as well as CA. It's got a lot going on under the hood and I'm not an expert as I just use it for basic functions. A lot of Asians in the USA use it as a free way to keep in touch with family back home. For Chinese, WeChat is much bigger although I do have some Chinese ladies that text me via Line.