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.
Learn more
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.
Let's talk about your product.
Happy to look at what you're building and say where design would move the needle.
Contact Us