Retention Rate
Retention rate is the percentage of users who return to your product after their first visit within a given time period — the single most important metric for product-market fit.
Formula
In depth
Retention is measured as:N-day retention = users active on day N who first used on day 0 ÷ total day-0 users × 100
Benchmarks by app type (Day 30): - Consumer social: 15–25% is good - SaaS B2B: 40–60% is good (weekly tool) - Fitness/wellness: 10–15% is good - E-commerce: 20–30% is good - Gaming: 10–20% is good
The retention curve shape matters more than any single number: - Flattening curve = product-market fit signal - Declining to zero = no PMF, users don't find ongoing value
How to improve retention: 1. Fix onboarding (biggest lever — most churn happens Day 1–3) 2. Shorten time-to-value 3. Build habit loops (streaks, notifications, social accountability) 4. Email/push re-engagement for dormant users
Real example
A fitness app with 25% Day-30 retention has found its retained core — the curve flattened after Day 14.
Tools & calculators
Related terms
Churn Rate
Churn rate is the percentage of customers (or revenue) that cancels or doesn't renew in a given time period. It's the single most important retention metric for subscription businesses.
Product-Market Fit (PMF)
Product-market fit (PMF) is the degree to which a product satisfies a strong market demand — the state where your product is so valuable that users naturally recommend it and return to it.
DAU / WAU / MAU (Active Users)
DAU (Daily Active Users), WAU (Weekly Active Users), and MAU (Monthly Active Users) measure how many unique users performed a meaningful action in your product within the given time period.
Cohort Analysis
Cohort analysis groups users who share a common characteristic (typically the time period they signed up) and tracks their behavior over time — revealing retention patterns, churn timing, and product improvement impact.
Ready to build your product?
Fixed price. 21-day delivery. Senior team.
Get a free scoping call →