It’s 3 numbers. – WifiMan from DataMan Review

It’s $3 for 3 numbers: Wifi Data received, Data Sent, and total (doesn’t really count because it just adds the other two, so I’m giving it 2 stars instead of 3). I haven’t figured out the “SSID” thing they advertise. Maybe it’s a fancy way of saying “it counts data used by just your phone”. So if you have multiple phones, you can buy the app multiple times.
Review by ElectroLlama on WifiMan from DataMan.