[longdivision]

There's another OS X only client called ChitChat (formerly WhatsMac) that I've been using for a few weeks which is very cool:

https://github.com/stonesam92/ChitChat

[somesay]

I like the integrated window control buttons and it has a nicer name than this project. Besides from that both are good wrappers for web.whatsapp.com and have native notifications, notification counter etc.