Have you ever used Line or WhatsApp? Why are they most attractive to you?

I've used WhatsApp before, it was a pretty solid messaging app, feature rich, the last time I used it. I've never used Line, though!
 
I use WhatsApp every now and then. I like the encryption and the ability to send larger pictures/videos than allowed by SMS/MMS.
 
WhatsApp is usually where everybody's at.

Would definitely have preferred if WA used a PIN system (like BBM) instead of phone numbers.
 
WhatsApp became popular around the world because long after US carriers stopped charging outrageous fees for each text message, that was still the case nearly everywhere else. WhatsApp allowed people to "text" over a data connection, basically for free.

Likewise, I started using WhatsApp with my family eight years ago because my new job came with an office in the center of the building where I had zero cell signal and texting was impossible. But I did have free Wi-Fi and, at the time WhatsApp was about the only app that could take advantage of that too allow me to communicate with my wife and son from my office.
 
ok,thanks.So where do you usually meet more strangers and friends?FB or INS?

Most of my friends/family messaging is usually done via SMS/MMS when not phone calls.

Most of my stranger/acquaintance communication is by Twitter or Instagram.
 
WhatsApp became popular around the world because long after US carriers stopped charging outrageous fees for each text message, that was still the case nearly everywhere else. WhatsApp allowed people to "text" over a data connection, basically for free.

Likewise, I started using WhatsApp with my family eight years ago because my new job came with an office in the center of the building where I had zero cell signal and texting was impossible. But I did have free Wi-Fi and, at the time WhatsApp was about the only app that could take advantage of that too allow me to communicate with my wife and son from my office.

As far as I know, whatapp is still very popular now.