“You have a place your users are going every day, which isn't always the case for all apps. There's no meditation store people are going to every day. I wonder if fitness apps have tried partnering with gyms. Find the adjacencies.”

Look for adjacent high-velocity venues your users already pass through

The retail QR play only works when your users already pass through a physical or digital venue with high frequency. Generalize: hunt for the high-frequency adjacent place your category already funnels through — gyms for fitness apps, headphones for music apps — and that's your partnership target.