North Star Metric
A North Star Metric (NSM) is the single metric that best captures the core value your product delivers to customers and predicts long-term sustainable growth. It sits between vanity metrics (revenue, installs) and leading indicators (clicks, pageviews) — it measures real value delivered. Slack's NSM is messages sent; Airbnb's is nights booked; Spotify's is time listening. Every team's work should connect to moving the NSM.
Note: There is no universal formula — each product defines its own NSM. It must be: (1) measurable, (2) leading (not lagging), (3) reflective of customer value, and (4) decomposable into input metrics your teams can influence.
NSM should be growing faster than your lagging revenue metrics (signal of a healthy flywheel)
Flat or declining NSM while revenue is flat or growing = dangerous divergence — growth is not compounding
Benchmarks by segment
How to improve North Star
Run an NSM definition workshop: propose 3–5 candidates, stress-test each against "does improving this actually help customers?", then pressure-test with a fake regression ("would this go up if customers were getting worse outcomes?")
Build an NSM input tree: decompose the NSM into 3–5 leading metrics that your squads can directly influence
Align all quarterly bets to NSM inputs — if a project doesn't connect to an NSM input, challenge why it's on the roadmap
Review the NSM annually — as products evolve, the best value metric may change (Uber's NSM evolved from "rides" to "trips per week")
Common measurement mistakes
Tools for measuring North Star
Best-in-class behavioral analytics with powerful event segmentation, funnel analysis, and retention charts that go far deeper than Google Analytics
Best-in-class event-based analytics with intuitive funnel, retention, and flow reports that surface actionable insights quickly
Best-in-class autocapture technology — captures every click, scroll, and interaction without manual event tagging, enabling retroactive analysis on historical data
All-in-one product analytics platform combining analytics, session replay, feature flags, A/B testing, surveys, and a data warehouse — replacing multiple point solutions
Autocapture eliminates the need for manual event instrumentation — every click, pageview, and form interaction is tracked automatically from day one
All-in-one platform combining feature flags, A/B testing, product analytics, session replay, and web analytics — eliminating the need for separate tools
Frequently Asked Questions
Technically one NSM is the ideal — it forces clarity. In practice, two-sided marketplaces or multi-product companies sometimes use two NSMs (one per side or per product). More than two is usually a sign you haven't made the hard prioritisation decisions yet.
KPIs are team-level performance indicators. The NSM is the company-level value metric that all KPIs should connect to. A team's KPI might be "onboarding completion rate" — this is an input metric that affects the NSM, not the NSM itself.