Cohort retention: The first is customer retention, which shows the % of customers that remain subscribers in every cohort. The second is revenue retention, which shows the % of revenue in each cohort that remains the longer the cohort stays active. Ideally, revenue retention should be higher than customer retention, because subscribers that stick a... See more

If you’ve been around startups long enough, you’ve undoubtedly seen startups with retention of customers that struggle to grow. If you’re not growing, you definitely do not have product/market fit. So product/market fit cannot be measured by retention alone. That retention has to create sustainable growth, which means the rate of retention matters.... See more

Retention measures breadth - the percentage of users who are still active in a given time period. But it doesn’t answer the critical question - how active are they within that time period?