ToolStack
Retention Metric

Retention Rate

Retention measures the percentage of users who return to your product after their first use. It's arguably the most important product metric — poor retention means every user you acquire eventually churns, making growth impossible without constantly refilling a leaky bucket. Retention is measured in cohorts, not aggregates.

Formula
Retention Rate (Day N) = (Users from cohort who are active on Day N) ÷ (Total users in cohort) × 100

Note: Always measure retention by acquisition cohort, not calendar period. Mixing cohorts masks early-stage retention problems.

Healthy range

Day 30 retention > 20% for consumer; > 40% for B2B SaaS

Warning signs

Day 30 retention < 5% means users aren't finding value in the core loop

Benchmarks by segment

SegmentBenchmark
Consumer mobile (top quartile)Day 30: 25–35%, Day 90: 15–20%
Consumer mobile (median)Day 30: 10–15%, Day 90: 5–8%
B2B SaaS (SMB)Day 90: 40–60%, Day 365: 30–50%
B2B SaaS (enterprise)Annual retention: 85–95%

How to improve Retention

1

Find your retention "cliff" — the drop-off point in the first week — and fix the onboarding that precedes it

2

Identify the core action that correlates with long-term retention (Facebook's "7 friends in 10 days") and drive new users to it faster

3

Add notifications, digests, or in-app prompts that re-engage users showing early inactivity signals

4

Improve the product's core value delivery — retention is an output of product quality, not just growth tactics

Common measurement mistakes

!Measuring retention on all users instead of by cohort hides whether you're getting better or worse over time
!Confusing account retention (paid) with user retention (active) for B2B — an account can retain without users engaging
!Optimising Day 7 retention without tracking Day 30 and Day 90 (short-term fixes can hurt long-term retention)

Tools for measuring Retention

#1
Amplitude
4.5Free tier

Best-in-class behavioral analytics with powerful event segmentation, funnel analysis, and retention charts that go far deeper than Google Analytics

#2
Mixpanel
4.6Free tier

Best-in-class event-based analytics with intuitive funnel, retention, and flow reports that surface actionable insights quickly

#3
PostHog
4.6Free tier

All-in-one product analytics platform combining analytics, session replay, feature flags, A/B testing, surveys, and a data warehouse — replacing multiple point solutions

#4
Heap
4.4Free tier

Autocapture eliminates the need for manual event instrumentation — every click, pageview, and form interaction is tracked automatically from day one

#5
Statsig
4.7Free tier

All-in-one platform combining feature flags, A/B testing, product analytics, session replay, and web analytics — eliminating the need for separate tools

#6
Whatfix
4.6

Best-in-class no-code editor for creating in-app walkthroughs, tooltips, and interactive guides without developer involvement

Frequently Asked Questions

What's the difference between retention and churn?

They're inverses: Retention Rate = 1 − Churn Rate. Retention focuses on who stays; churn focuses on who leaves. Retention is better for measuring user engagement; churn is better for measuring revenue impact.

How do you measure retention for B2B products?

For B2B, measure both seat-level retention (are users logging in?) and account-level retention (is the subscription renewing?). Both matter — high account retention with low user retention signals a cancel risk that hasn't materialised yet.

Related metrics

Churn RateDaily Active Users (DAU)Activation Rate