Dont support greedy developers

Customers who paid for this version (before it went free) have been left out in the cold.

Why? He didnt want to give anything to his existing customers by upgrading. Instead, he thought he would be clever (aka greedy) and put the upgraded features in a new version, thinking everyone will just happily accept this.

If you buy the pro version, you support this bad business practice, and the same thing will likely happen to you with the next upgrade.

MisterMellow001 about Wind Tunnel Free