From the author's text: > My app has a sharing feature: if you like the app, you can email your friends about it.

Unless your software product has something similar (and is also priced low, and is also installed via something like an app store: and hence is one-click away), I don't think piracy will help you much. At least it does not to the s/w authors who claim a persistent 30-80% drop in sales the day the crack comes out.