DataMan was one of the first iPhone data trackers when it debuted back in 2010, after AT&T 86ed the utopian guarantee of unlimited data.
This new iteration, DataMan Next, is much prettier, but essentially does the same thing: It tracks your data usage and warns you before you spend money needlessly on data overage charges; it can even predict whether you’ll end up going over your monthly allowance. And today, it’s free.
