1 / 5
A group of users who signed up in the same period and are tracked together is a ___.
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A cohort groups users by a shared start time so you can compare how each group behaves over its lifetime.
2 / 5
A chart showing what fraction of a cohort is still active over time is a ___ curve.
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The retention curve plots active share against weeks/months since signup, revealing how well the product keeps users.
3 / 5
When a retention curve levels off rather than dropping to zero, it has ___.
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A flattening curve indicates a loyal core that sticks around; a curve heading to zero signals no durable retention.
4 / 5
Cohort retention measured in dollars rather than active users is ___ retention.
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Revenue retention weights each user by spend, so expansion in a cohort can offset losses, sometimes exceeding 100%.
5 / 5
Comparing newer cohorts to older ones shows whether the product is ___ over time.
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Stacking cohorts reveals trends: if recent cohorts retain better, product or onboarding changes are working.