Just discovered there is FINALLY a WW app for android that is the equivalent to the iPhone app. I am a WW Online Member so the app was free. I'm not sure if or how it works if you're not a member though.
Anyway, it's great! Just like if you're on a computer except you use your phone, which is very convenient cause I always have my phone with me. You can track, find foods, and there is a points plus calculator built into it.