Let user mark our App from market

GoToMark

Uri uri = Uri.parse("market://details?id=" + getPackageName());
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
ResolveInfo resolveInfo = getPackageManager().resolveActivity(intent, 0);
if (resolveInfo == null) {
    // There is no market
} else {
    startActivity(it);
}