“that point of purchase is probably the most engaged your customer is ever going to be... we get pretty decent conversion rates in that 5-ish% and all of a sudden you know I have zero incremental customer acquisition costs and now I'm driving something like a hundred to $200 in lifetime value from just one pop-up”

Strike while the card is out: post-purchase upsells convert at 5%

Michael runs a simple upsell immediately after a user subscribes, when the credit card is already out and intent is at its peak. At Conde Nast, a single post-purchase pop-up for a business membership tier converts at around 5% with zero additional CAC, generating $100-200 in incremental LTV per subscriber. The moment of purchase is the single highest-leverage upsell window; most apps never use it.