Why would anyone who has an IQ higher than 60, volunteer to work for free to benefit a for-profit Corporation?
I of course would be willing to test their product, at my standard consultant rate, just like I do for my other corporate clients. You should consider doing the same. And no, you will never get a paying job but starting as free labor.
But the executive keep listening to the bean-counters who keep asking, "why hire competent workers when naive techies (translation: idiots) will work for free?"