Retention
The share of users who keep using a product over time — the single best indicator of whether it delivers real, repeated value.
Growth & MetricsRetention is read as a curve by cohort, not as one percentage: what fraction of the people who joined in a given week are still active one, four and twelve weeks later. The shape matters more than any single point. A curve that decays toward zero means the product is a one-time novelty; a curve that flattens means a stable group found lasting value, and that flat portion is the real business.
It also has to be measured against a natural usage frequency. Daily retention is the right lens for a messaging app and meaningless for tax software, where quarterly return is success. Improving retention almost always means improving activation — the users who churn early mostly never reached a first result.
In practice
A wellness app reported 45% day-7 retention and treated it as healthy until cohorts were split by whether the user completed a first session. Before: one blended number. After splitting, completers retained at 71% and non-completers at 9%. Effort moved from content to the first-session flow. The catch — the blended number got worse before it got better as marketing volume rose.
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You may ask
Frequently Asked Questions
What is a healthy retention curve?
One that flattens. The absolute level depends entirely on category and expected frequency; the qualitative test is whether the curve reaches a plateau above zero rather than continuing to decay.
Is retention the opposite of churn?
Broadly, yes — they are complements over the same period. Retention is usually reported by cohort over time, while churn is reported as a rate per period, so the two are not always directly comparable.
Related terms
All terms- ChurnThe rate at which customers stop paying or stop using a product over a given period — the mirror image of retention.
- ActivationThe moment a new user first gets real value from a product — the step that turns a signup into someone who has a reason to come back.
- OnboardingThe experience that takes a new user from first opening a product to getting real value from it for the first time.
- North Star MetricThe single measure that best captures the value customers get from a product, used to align teams that would otherwise optimise conflicting numbers.
Defined by Mara Last reviewed .
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