First right under the name it says "lifetime deal" but then it turns out it is not a lifetime deal as we would normally think of it.
But having used this on three videos, I am more or less blown away at its accuracy. It also does seem to be easy to use, sort of, or easy to learn, but still a learning curve. But I will say it again, the accuracy is uncanny.
If you want to transcribe from existing videos or audio, I would highly recommend giving it a try. This is the only "real" product for voice to text I have tried besides what is built into windows and something called dragon something-or-other long ago, but I am impressed.