Sherina Khalidi stood before the audience at App Promotion Summit London 2025 with the kind of graph that would make any marketing executive wince. The line was stubbornly flat — a visual testament to what she called “not very satisfying” growth at Deezer, the Paris-based music streaming service where she serves as VP of Marketing. But Khalidi had learned to love that graph, because it told a story about constraints breeding creativity. While Spotify and Apple Music threw marketing doll...
