There is an exemption according to the terms [1]: " ..must use Google Play's in-app billing service as the method of payment, except: where payment is for digi

There is an exemption according to the terms [1]: " ..must use Google Play's in-app billing service as the method of payment, except: where payment is for digital content or goods that may be consumed outside of the app itself (e.g., buying songs that can be played on other music players)." [1] http://play.google.com/about/developer-content-policy.html http://play.google.com/about/developer-content-policy.html So I guess why apps like whatsapp/skype still alive since they allow you to use them outside of the android app.