--- title: Retention — definition & meaning | RGM® Glossary url: https://realgrowthmatters.com/glossary/retention/ updated: 2026-06-10 source_html: https://realgrowthmatters.com/glossary/retention/ --- # Retention re·ten·tion/ɹiˈtɛnʃən/noun Keeping the customers you already won — active, engaged, and paying — rather than losing them to churn. Term : Retention Part of speech : Noun Field : Growth & Lifecycle Also written : Customer retention ## Forms & parts of speech retention · noun The act of keeping customers, users, or revenue rather than losing them over time. "Our 90-day **retention** rose to 62% after we rebuilt onboarding." retain · verb To keep a customer or user engaged so they do not leave or cancel. "Loyalty perks help us **retain** high-value subscribers through year two." retained · adjective Describing a customer or cohort that has stayed active across the measured period. "**Retained** users spend roughly three times more than first-month buyers." ## Definition in plain terms Retention measures whether the customers you have already acquired keep coming back — staying subscribed, logging in, or repurchasing — over a defined window such as 30, 90, or 365 days. It is usually expressed as a rate: the share of a cohort still active at the end of the period. ## The mechanics You pick a starting cohort (everyone who signed up or first purchased in a period), define what "active" means for your product, and measure how many remain active at each later point. Plotting that over time gives a retention curve. A curve that flattens means a sticky core of customers found lasting value; a curve that decays toward zero means a leaky bucket no amount of acquisition will fill. ## When it matters Retention is the foundation of efficient, compounding growth. Because it costs far less to keep a customer than to acquire a new one, a business that retains well grows on the base it already has, while one that churns must keep buying replacements just to stay flat. It is also the truest signal of product-market fit: people come back to things that deliver value. **Worked example.** A subscription app acquires 1,000 users in January. By day 90, 620 are still active — a 62% 90-day retention rate. If a redesigned onboarding lifts that to 70%, the same acquisition spend now yields 80 more retained users every month, compounding into materially higher lifetime value without a dollar of extra ad budget. **Failure modes to watch.** Reading a single blended retention number while newer cohorts quietly retain worse than older ones; confusing logins with genuine value-driven activity; and celebrating top-line growth that is really churn masked by heavy acquisition. Always read retention by cohort. ## Formula Retention Rate = ((E − N) ÷ S) × 100S = customers at start of period · E = customers at end · N = new customers acquired during the period. Net revenue retention and cohort retention use related but distinct formulas. ## Benchmarks Healthy retention varies widely by model, industry, and how "active" is defined, so always compare against your own segment, not a universal number. B2B SaaS — customers kept per year ~90%+ is considered strong Consumer subscription — subscribers kept ~60–70%+ is healthy (varies) Mobile app — still active after 30 days Varies widely by category Live, sourced benchmark data [RGM tools & benchmarks →](/tools/) Ranges are illustrative; every published figure is cited from a named public source or labelled “RGM analysis.” ## Synonyms & antonyms ### Synonyms customer retentionstickinessloyaltyrepeat rate ### Antonyms churnattritiondefectionturnover ## Origin & history From the Latin *retentio* ("a holding back"), from *retinēre* — *re-* ("back") plus *tenēre* ("to hold"). English adopted "retention" in the late 14th century for the act of keeping or holding. Its use as a core business metric grew with SaaS and subscription models in the 2000s–2010s, when recurring-revenue economics made keeping customers as measurable, and as valuable, as winning them. Etymology: [Online Etymology Dictionary](https://www.etymonline.com/word/retention). ## Usage trends Search interest for this term over the last five years: [View interest-over-time on Google Trends →](https://trends.google.com/trends/explore?q=retention&date=today%205-y) ## Common questions Is retention the same as retention rate? : No — retention is the concept of keeping customers; retention rate is the number that quantifies it for a cohort and period. What is the opposite of retention? : Churn — the rate at which customers stop being active or cancel. Why does retention matter in growth marketing? : Keeping a customer costs far less than acquiring one, so strong retention compounds growth on the base you already have. ## Related tools & calculators - calculator[Churn rate calculator](/tools/churn-rate-calculator/) — the inverse view of retention - calculator[Customer lifetime value calculator](/tools/ltv-calculator/) — see how retention drives LTV - calculator[Net revenue retention calculator](/tools/net-revenue-retention-calculator/) ## Resources & people to follow - book*Lean Analytics* — Alistair Croll & Benjamin Yoskovitz (retention as a core metric) - book*The Cold Start Problem* — Andrew Chen (networks, engagement, and staying power) - thought leaderLincoln Murphy — customer success & retention writing - thought leaderBrian Balfour (Reforge) — growth and retention frameworks Curated, non-competitor resources verified per term. ## Related training - module[Subscription growth](/training/subscription-growth/) — retention-led recurring revenue - module[Email & lifecycle marketing](/training/email-lifecycle-marketing/) — programs that lift retention - module[Marketing analytics](/training/marketing-analytics/) — measuring cohorts and retention ## Disciplines Areas of marketing where retention is a core concern: [Lifecycle marketing](/training/email-lifecycle-marketing/)[Growth marketing](/training/growth-marketing-foundations/)[Marketing analytics](/training/marketing-analytics/)[Subscription & SaaS](/training/subscription-growth/) ## Read next ## Related terms [Churn rate](/glossary/churn-rate/)[Retention rate](/glossary/retention-rate/)[Net revenue retention](/glossary/net-revenue-retention/)[Lifetime value](/glossary/lifetime-value/)[Cohort analysis](/glossary/cohort-analysis/) ## Sources 1. trends[Google Trends — "retention," interest over time](https://trends.google.com/trends/explore?q=retention&date=today%205-y) 2. etymology[Online Etymology Dictionary — "retention"](https://www.etymonline.com/word/retention)