@Chetan_singh Great question. We are very passionate about what we do and to provide a platform that is used by so many users. However being passionate, doesn’t pay for service expenses. So, we have made it user-supported and we have some users whom either have subscriptions or have made contributions, and we truly appreciate and thank these users and encourage others to follow link below for starting subscription or contribution:
Having said above, AppyBuilder user base is on rapid growth and we have lots of free non-subscriber users meaning much more expenses for AppyBuilder. So, to be fair to subscribers, we are coming up with a plan that, like other distros, a %5 AdMob revenue is directed to AppyBuilder. However, this will ONLY apply to free users and NOT subscribers.
If you want to subscribe, link here: http://appybuilder.com/appybuildersupport.html