Stefan Papst is a growth-focused product and mobile engineer with 10 years of experience building and scaling subscription-first apps and enterprise projects from Styria, Austria. As co-founder of Fasky and founder of Tap Convert he combines hands-on React/React Native development, analytics (Mixpanel, Firebase, RevenueCat) and UA expertise to drive retention and profitable acquisition — having bootstrapped 500k+ organic installs and €70k+ in subscription/Stripe revenue. He currently advises FitApp on segmentation, CRO and monetization for a 14M+ download product while still shipping indie lifestyle apps that achieved ROAS ≥100% on paid campaigns. Known for turning rapid validation into repeatable growth loops, he blends product intuition with technical execution and agency-grade delivery for enterprise clients like E.ON. Notably, he bridges founder-level strategy and developer-level implementation, often leading small distributed teams to fast, measurable outcomes.
10 years of coding experience
3 years of employment as a software developer
Master of Science - MS Software Development & Business Management, Master of Science - MS Software Development & Business Management at Technische Universität Graz
Contributions:4 PRs, 62 pushes, 21 branches in 2 months
androidkotlinandroid-gamegrazjava
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.
Request Free Trial
Stefan Papst - Growth Manager (Fitapp) at Tap Convert