About Sylvain
Sylvain Gauchet builds and studies growth for consumer subscription apps. He founded Growth Gems in December 2019, a biweekly newsletter that mines concrete, actionable insights from the best growth podcasts, webinars, and panels in mobile and subscription growth. Before that he co-founded Apptamin, a creative agency producing video ad units and App Store videos for user acquisition, then spent several years at Babbel, rising to Director of Revenue Strategy for the US and leading growth product, mobile marketing, and monetization. He is a recurring voice in the subscription community and a repeat guest on RevenueCat's Sub Club podcast, and he sits on the MAU (Mobile Apps Unlocked) advisory board.
Today he works as an independent and fractional growth advisor for high-potential subscription apps, including a fractional Head of Growth role at Reading.com. His focus runs the full funnel: acquisition creatives and ASO, onboarding and activation, pricing across app and web, and paywall design. He is known for a holistic paywall philosophy that treats conversion as the product of the entire journey leading up to the paywall, not just the paywall screen, and for practical playbooks like multi-screen paywalls, hard-paywall mitigation tactics, and segmenting users by subscription status instead of reading everything in aggregate.
