Developers need to provide strong value propositions that support the cost of the subscription or premium purchase in order to successfully implement subscription models and premium content.ielts slots This could entail giving subscribers access to exclusive content that isn't available to non-subscribers or including significant discounts on in-game purchases as part of the subscription package. To keep subscribers interested and engaged, developers should also update and refresh their premium content or subscription benefits on a regular basis. Drawing in New Subscribers.