TLDR: The most underrated anti-churn tactic in SaaS is almost embarrassingly low-tech: send your customers a short video of your actual face. It works because retention is a relationship, and a face is a relationship shortcut a dashboard cannot fake.
People do not stay for products, they stay for people
My dad stayed with an overpriced insurance guy for years. Not because the policy was good. Because he liked the guy. That relationship was worth more than the price difference, and no comparison site ever pulled him away.
SaaS forgets this constantly. We optimize features, pricing, and onboarding flows, and we forget that the strongest reason a human keeps paying is that leaving would feel like letting a person down. You cannot get that feeling from a logo. You can get it from a face.