I installed Yapan the other day and have been really happy with it. It sits in the notifier area of my tint2 window in my Openbox window manager and periodically checks to see if any packages have been updated. I’m pretty good about running my update once a day, but this is kind of fun too.
I set it up to use my package manager of choice, bauerbill, thusly:
sudo bauerbill -Sy
Packages to update:
sudo bauerbill -Su
Because bauerbill is a command-compatible with pacman, it works like a charm and includes checking the AUR for updates too.