title: Is there a way to give promo/coupon codes for people to download your app for free?
body: <p>I need a way to share my app to allow people to download it for free with a coupon code or promo code or checkout code. I would like to post the code to a board, and invalidate it after some time. My app uses licensing and in-app billing, so mailing the APK may not be appropriate. The last question I saw regarding this was 6 months old, so I did not know if there was a newer solution available.</p>