Subscription Offer as a Perk

We have a social connection, publicly available app that individuals can use with an in-app subscription. How can a company/organization offer people access to thie public app free as a perk?

Volume based purchasing seems to only be for custom apps unique to that particular company. Could I use that as a way to bring people into the public version of the app?

Subscription Offer as a Perk
 
 
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