What is Retention Rate? — Definition for DTC operators

Definition

Retention rate is the percentage of customers from a starting cohort who are still active (have purchased or remained subscribed) at a later point. Day-30, day-90, and day-180 retention are the standard reporting windows.

How operators actually use it

Retention is the inverse of churn, but measured cohort-by-cohort rather than blended. A model DTC brand might show 35% retention at day 90, 25% at day 180, 18% at day 365. Improving retention 5 points at day 90 lifts LTV more than improving acquisition by the same percentage lifts revenue. Operators run retention curves as the primary diagnostic for product-market fit and lifecycle email effectiveness.

Common pitfalls and honest-cost notes

Most retention curves include 'fake' retention from discount-driven repeat purchases that would not happen at full price. Segment your retention curves into discount vs. full-price repeat to know which is which. Also: stop calling 'users who opened an email' retention — retention is revenue or active usage, not email opens.

Related terms

Churn Rate — Churn rate is the percentage of customers (or subscribers) who stop buying or cancel in a given period, typically measured monthly.
Repeat Purchase Rate — Repeat purchase rate (RPR) is the percentage of customers who place a second order within a given window, regardless of product or timing.
Cohort Analysis — Cohort analysis groups customers by a shared attribute (usually first-order month) and tracks how that group behaves over time — revenue, retention, repeat rate, refund rate.
LTV (Lifetime Value) — LTV is the projected total revenue a customer will generate over their relationship with your brand.
Replenishment Rate — Replenishment rate is the percentage of customers who reorder a consumable product within its expected use cycle (e.g., a 30-day supply being reordered by day 45).