Wind tunnel pro?

What a ripoff. You pay 1.99 for this app and now theres a new Wind Tunnel Pro for 2.99, with features that THIS app should have had from the beginning. Now what , am I supposed to pay more money for features that could have easily been included in an update.
This app also needs a START and STOP button.
Dont get me wrong, this app is fantastic and very educational, it works perfect. I just feel ripped off by the developer with that Wind Tunnel Pro BS..

_Toaster about Wind Tunnel Free