is the software program that is installed on your computer. The  is the service that  connects to so that you can send and receive messages, see the  of your contacts, receive alerts, and so forth.  is like your own telephone, while the  is like the phone service that allows your telephone to connect to other phones.
je računalniški program, nameščen v vašem računalniku.  je storitev, s katero  vzpostavi povezavo, tako da lahko pošiljate in prejemate sporočila, vidite stanje svojih stikov, prejemate opozorila itd.  je kot osebni telefon, medtem ko je  telefonska storitev, ki omogoča vašemu telefonu, da vzpostavi povezavo z drugimi telefoni.