Jeff Grang is a seasoned mobile engineer-turned-founder with over a decade of experience building and scaling consumer apps and monetization platforms from Paris. As a serial entrepreneur he led app A•Z to produce 50+ apps (seven App of the Year winners) for clients like Molotov, Swile, Virtuo and PSG, then co-founded Purchasely to solve the persistent problem of making in-app subscriptions perform. Now CEO of Purchasely, he helps hundreds of customers worldwide boost mobile revenues by streamlining IAP integration and subscription flows. His background spans hands-on iOS development (one of the first 500 iOS developers), product strategy, and commercial growth—skills honed from launching startups, creating OCTO’s mobile practice, and hosting the Subscription League podcast. He combines product intuition with engineering rigor and a track record of turning app experiences into sustainable recurring revenue. An understated strength: he repeatedly moves from ship-it engineering to repeatable business models that scale across markets.
10 years of coding experience
16 years of employment as a software developer
Ingénieur Information System and Software architecture, Ingénieur Information System and Software architecture at EPITA: Ecole d'Ingénieurs en Informatique
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Jeff Grang - Chief Executive Officer at Purchasely