Retention is a critical metric; it shows how many customers continue to pay over time, indicating the product's value to them.

Cohort retention tracks the fraction of new users who continue using your product over time, providing a quantitative measure of user engagement.

Retention should be analyzed by looking at cohorts of users over time, assessing how many continue to use your product after signing up.

Measuring retention is critical; if you don't have a product that retains users, you shouldn't focus on growth yet.

Visualizing retention through stacked cohorts can illustrate the long-term value of customers and the health of your business. High retention businesses can still grow revenue even when no new customers are signed up, as they continuously add layers of revenue over time.

Retention is the most reliable way to measure product-market fit; it indicates whether users continue to find value in your product.

Returning usage is a key indicator of product success; track how many users return within various time frames after signing up.

To gauge product-market fit, measure how many users return to your product after a week or 30 days, and aim to exceed industry benchmarks for retention.

Visualizing cohort retention trends helps you understand how user engagement changes over time relative to the initial cohort size, allowing for better analysis of user retention. Cohort retention curves are essential for understanding user engagement over time, as they track the percentage of new users who return to use the product repeatedly.