It's not FOSS and has the worst payment system possible (donate to the dev then send him an email, and he will give you a license for a single device), so don't feel bad pirating it.
I got one for commenting on the France subreddit that it wasn't surprising some people would carry justice by themselves if the police and courts do nothing. I wasn't justifying, merely explaining. Subreddit ban, then permanent sitewide ban a few minutes later.
Luxury brands have to somehow find a way to make the most mundane shit seem complex to justify their prices.