Android privacy is a huge concern, with almost all apps in the store being vulnerable to it. It gets expensive (often useless!) to implement a new anti-piracy measure. The common advice found on the Internet is to always implement anti piracy measures that are not too time taking to implement. So, here are some of the anti-piracy measures that you can implement easily in your app.
PS: Psst!! What other anti-piracy measure do you guys use in your android apps? Would love to learn more about them.