How to know if an app is downloaded for first time or many times from market?
<p>I am placing an app for free in the Market. I want to restrict the downloads (i.e only 1 download per account). If the person uninstalls my app and tries to download again and re-install it with same gmail account, I want to restrict it.</p>

<p>Is that possible? Please help. I am stuck here. Thanks in advance!</p>
