Internet traffic rate monitor

TraffiX is a simple, one-window app. It presents a “level indicator” view of your estimated monthly usage, a total usage bar, and place to set the usage cap value.
Note that because TraffiX can only start gathering information when you first run it, the initial results may be wildly inaccurate. Just run TraffiX and then quit it and run it again in a few hours for a more realistic estimate. The more time you leave between runs of TraffiX, the more accurate its estimate is going to be. Read the helps for some caveats on this.