The most effective ads I’ve seen in my lifetime have been podcast ads. I don’t remember shit I see in mobile apps or on most corners of the internet. I could personally sell Blue Apron or Harry’s Razors for all I’ve heard about them on podcasts though. The smartest companies allow the podcasters to joke around in their ads too. My Brother, My Brother, and Me will say some borderline offensive but hilarious stuff in their ads and I’ll be damned if it doesn’t keep me listening to their ads and hearing about the products being advertised.