I primarily use my laptop for the Kava Forums, especially for typing responses and reviews.
I'll typically only use the smart phone for quick check-ins while I'm out.
I find I'm checking this more often at work on the work laptop than at home on the desktop. Because I don't work weekends, I'm less frequently checking messages here. I do replies on both desktop and mobile but it's much easier to write on a proper keyboard. I must be particularly compelled to reply if I'm doing so on my phone.
I used to use my laptop - it is definitely easier - but now at work I am in position where the whole office can see my screen, so no more dicking around on the internet during work hours. So smartphone it is, using tapatalk.