We have given away ten AdDuplex coupons this month to randomly chosen developers that have submitted their apps to WPbeta.me, a free service that connects Windows Phone developers with beta testers and helps them manage beta testing.

From today, we’re taking this to the next level! AdDuplex and WPbeta.me will award every beta app, public or private, that has more than ten (10) active beta testers* with a 50 US$ coupon! That will come in handy when you publish your app, so you can promote it on the largest advertising network for Windows Phone.

All you have to do is have ten active testers and click “Get coupon” on your app properties page on WPbeta.me site and you’ll get the code, as well as instructions how to redeem it.

If you don’t use WPbeta.me, as a developer or a beta tester, what do you wait? Start now – it’s simple, useful and free!

*active beta testers = enrolled via WPbeta.me and added as beta testers in Dev Center