Full-service Product Agency based in Paris, Nantes, and Lyon , 40/60 Studio designs, creates, and develops digital products that your users will adopt long-term. Our conviction: a good experience is not based on intuition, but on a fine understanding of usage. We combine user insight, design, and technology to create useful, actionable, and measurable solutions. Why choose us? UX & Insight Driven : We start from real usage to design fair, desirable, and effective products. Impact & Performance : Every design decision and every development is conceived to generate concrete results: conversion, engagement, efficiency. Full-Stack Product Expertise : From user research to development (Design System, apps, SaaS), we cover the entire value chain. Key Figures & Experience: +200 projects launched since 2016 for growing startups and large corporations. Excellent customer satisfaction : Average rating of 4.97/5. Team of experts : More than 30 talents (designers, strategists, tech experts) dedicated to your success. Our areas of intervention: We support local and international organizations on complex issues, at the intersection of business, user experience, and technology: Media, Mobility, Health, B2B SaaS, Retail, Industry, Impact. More information on our website. They trust us: Stellantis | SNCF | Renault | TF1+ | Arte | Eiffage | Institut Pasteur | Heineken | France Télévion | Simplon | Visiativ.