whatsapp sucks
use WeChat
I know I am not helping at all. If GBAtemp had a "dislike" post, I would be getting tons of that
It's like facebook, it sucks hard but because everyone else uses it you are basically forced to use it as well.
I have tried to make my android using friends to default hangout as text message app so I could easily reply from computer and it would automatically use it for free instead of charging SMS. However last time I checked it was only possible to do video calls, not regular ones. WhatsApp seems to have browser version, but it works by connecting to phone and sometimes simply drops the connection without any reason or may take up to minute from receiving message to show up on computer.
This is the reason why my phone is always running Facebook Messenger, WhatsApp, Skype, Steam, Playstation App and Hangouts, also when needed Teamspeak and IRC. Even with all of those I still get regular text messages and phone calls. Luckily even the skype doesn't drain battery nowdays and nexus battery life is amazing.
That WeChat does look really good, but again, haven't heard about that one before so changes are nobody I know uses that.