It seems to do the job, thank you.
But is there any way to 'reset' statistics when I need it, or set a time period for stats collection?
It displays totally network usage by adapter, but I do not want just a 'total' mb upload/download in general, but I should be able to start it when I start using my mobile data package, and if I could set a limitation (lets say, 'alarm' me when it reaches totally 5gb in 'wireless' adapter) it would be very helpful.
there's three data things if you click the graph. last hour, last 24 hours, last 7 days... besides that no, maybe there's an alternative app.
i'm guessing you're either using your phone or live in a country that has no unlimited internet... if you're using your phone you can get apps for what you asked for... if you're in some lame country... you're asking a dev team to feel sorry for you and add features for those countries.
if you're canadian, you can get unlimited with teksavvy or distributel. ( a lot of people think canada doesn't have unlimited, which is false )
sorry, if that doesn't help... use google. ;\
edit: here i typed "istats alternative" in google and got this
http://alternativeto.net/software/istat/?platform=mac
edit#2: when it comes to mac, most devs come from US since apple dominates there and no where else, maybe canada