If you have an iPhone and a contract with your carrier (of course you guys in the US do), then I guess you’re obsessed with data usage tracking: how many messages can you send per month? What’s the threshold for mobile internet access? How much have you consumed this week? Depending on the country and carrier, the experience can be terrible. Fortunately, I have a pretty good plan with 3 Italia over here (4 GB internet / month, 400 SMS, 800 minutes voice) so I haven’t really worried about keeping track of my usage - I understand, though, that this is a problem for many.
DataMan by XVision is probably the most complete app to monitor and even geotag your daily, monthly and week data usage on your iPhone. Read more