The reason is simple: The standard Apowerrec license costs around $29.95 per year or $49.95 for a lifetime license. While this is reasonable for professionals, casual users often seek free alternatives.
However, Apowerrec is not free. After a trial period, users are prompted to purchase a subscription or a perpetual license, which unlocks all features and removes watermarks. This has led to a massive demand online for a free Apowerrec License Key