SPONSORED: As marketers in the non-gaming mobile ecosystem try to quickly catch up to their gaming counterparts, “Mobile Heroes” brings you a weekly series of articles offering insights and education for marketers of non-gaming apps. Brought to you by Liftoff. Meet the heroes here. Customer acquisition, retention, and monetization strategies are one thing in the world of mobile gaming, and even e-commerce apps, but implementing these for a subscription-based service is a challenge only a handful of marketers have tackled head-on successfully.