Do you know https://www.dateinasia.com? It's a free dating site and this application notifies you when your friends are online. So you will never miss your friends when they are online.
You can easily add friends to your list of friends.
If you have any questions, comments, ideas or suggestions please feel free to write.
Please inform me about problems.
FAQ 1. Why FADIA doesn't support chatting? This app only displayes friends who are online. For chatting it will direct you to the original website of DIA, which is a free dating site only financed by advertisement. Chat support inside this app would harm that business model.