Edward Hart: I'm sorry you're feeling wronged here. We've updated the application significantly for version 5, and added a great deal of new functionality. If that's not useful functionality for you, however, you're not at all required to pay for it. However, on our end, in in order to sustain our business, we need to charge a fair price for adding substantial new functionality. Airfoil for Windows has existed for almost a decade, and this is the very first paid upgrade we've sold for it. This is most certainly not a "blatant money grab".

If you've had years' worth of issues with Airfoil, we'd certainly like to know more. On our end, I can find only one email from an "Edward Hart" using Airfoil for Windows. It was sent to us one year ago, at which point we answered, and received no further questions. We're here to help with problems you might be having.

As far as blog comments, they close a few days after a post has been published to prevent spammers from hitting them. We watch them as best we can for the few days after a post, but after that, closing them is the safest way to prevent spam.

Tom B: Thanks for the kind words about Airfoil, and we're glad you like the update! As for the rest, let's be sure to keep things civil here. While we don't agree with Edward, he's entitled to his opinion.