To measure product-market fit, look for retention; if users keep coming back, you're solving their problems effectively.

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

Real product-market fit indicators are retention rates at day 20, day 30, and day 90, not just day 1 or day 7.

To measure product-market fit, identify a metric that reflects the value your customers derive from your product and track its repeat usage.

Using surveys to gauge product-market fit can be biased; instead, focus on measuring actual user retention.

Setting a metric and goal for your team allows for data-driven operations, where you can monitor progress daily and adjust strategies accordingly. A low retention rate, like 6.25% after four weeks, indicates poor product-market fit; aim for at least 20-30%.

Products lacking product-market fit typically see user engagement decline to zero, while those with fit will stabilize at a certain retention rate, ideally between 20-30%.

Tracking customer retention is essential; it helps you understand how many users continue to engage with your product over time, which is a key indicator of success.

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