Paid Ads: Rent Growth, Check the Lease

A subscription plant-care app is thrilled with its ad account. The dashboard glows: $2 per click, thousands of installs, the growth chart points up and to the right.

You ask two questions. Their subscription is $8/month, and subscribers stick around about 5 months. Their real numbers: $2 CPC, 10% of clicks sign up, 20% of signups ever pay. The team wants to triple the ad budget.