Retention

Definitions

1. Retention in product and business context measures the percentage of users or customers who continue using a product or service over time. It is widely considered one of the most important metrics for software products because it indicates whether users find lasting value. Common retention metrics include Day 1, Day 7, and Day 30 retention (what percentage of new users return after one day, one week, or one month), monthly active user retention, and cohort retention curves that track specific groups of users over time. High retention indicates product-market fit and sustainable growth, while low retention means the product is a leaky bucket where new users leave as fast as they arrive. In subscription businesses, retention is closely tied to churn rate (the inverse: the percentage of customers who cancel). Improving retention typically has a larger impact on growth than improving acquisition, because retained users compound over time and often become advocates who bring new users organically. Retention analysis by cohort, segment, and behavior pattern is fundamental to product analytics.

   In plain English: What percentage of your users keep using your product over time — the truest measure of whether people actually find it valuable.

Related Terms

• Pivot
• Product-Market Fit
• Growth Hacking
• Frictionless
• Propensity Model