Jeff Grang

CEO @ Purchasely -🥇App Growth Innovation award winner

France

About

Jean-François, or Jeff for short. I am a passionate engineer and was among the first 500 developers on iOS and never stopped building apps ever since. I started my career by creating an app agency and has since developed 50+ apps, including Molotov TV (acquired by Fubo), Swile, Virtuo, Eatwith, Angell Bike and PSG. Seven of these apps were awarded the App Of The Year award. During that journey, I felt that he was struggling too much with making in-app subscriptions perform. This is how they had the idea of Purchasely with partners Nicolas Tissier and Romain Salles. Today, with several hundred customers worldwide and many more apps fueled by Purchasely, I have the chance to help companies in a much more impactful and global way shaping the product that makes them skyrocket their revenues.

Experience

  • Purchasely (6 yrs 8 mos)
    • Chief Executive Officer
      Sep 2023 - Present · 2 yrs 9 mos

    • Co founder
      Oct 2019 - Sep 2023 · 4 yrs

      We help you build and grow your mobile revenues by streamlining In-App Purchase integration. https://www.purchasely.com

  • Co-host at Subscription League
    Mar 2022 - Present · 4 yrs 3 mos

    Co-host of the Subscription League podcast. We sit down with CEOs, innovators, and experts to discuss hands-on experiences, pitfalls, and actionable insights and strategies for successful app subscription and monetization strategies.

  • Board member at Nancy Handball
    Jul 2021 - Sep 2025 · 4 yrs 3 mos

  • Founder & CEO at app A•Z
    Oct 2012 - Oct 2021 · 9 yrs 1 mo

    app A•Z is a mobile development agency. We are an experienced-engineer company (7+ years of experience) and we help our clients from A to Z. We provide high level technical expertise, high sensibility to UX/UI and a great ability to integrate into your team and improve your projects. Among all the projects we are proud of we have developed apps for Virtuo, Swile, Eatwith, The Explorers, … but also Molotov, L’Express and many more. We have been awarded 6 times app of the year by Apple including best TV app worldwide (The Explorers)

  • Mobile Business Development Manager at OCTO Technology
    Sep 2009 - Oct 2012 · 3 yrs 2 mos

    Founder and manager of the mobile business offer at OCTO, an activity that generated more than 2 million € of revenues in 2011 (it's second full year of activity) and that operates in every country where OCTO is settled. Creation of the activity including the definition of OCTO's identity on the mobile field, the creation of the consulting product catalog, the evangelization of the commercial team and the recruitment and training of new members of the team. Technical and commercial development of the activity : - Technical as a Tech Lead on several missions (mainly for banks and insurances) and actor of the mobile innovation - Commercial as a co-commercial worker with the commercials on every phases of the process (phoning, discovery meetings, proposals, project costing, billing). Around 50 potential customers met per year. Actor of teh mobile innovation : - Founder of the private store solution Appaloosa-Store.com - Partnership with Ingenico's iSMP and development of new sales tools on point of sales on several pilot missions (Chanel, Dior, Darty, ...) - Definition of new ergonomics for daily banking and new insurance's usages In charge of the international development of the mobile offer in Switzerland, Belgium, Morocco and Brazil. Speaker in a large number of conferences in France and abroad : USI Event 2010 & 2011 (France), Mobile Summit 2012 (Belgium), Med IT (Morocco), Agile Tour (France - Nancy & Paris), Agile France, ...