The 12 Growth Analytics Metrics Every Team Should Track

Acquisition metrics: measuring quality, not just volume

The three acquisition metrics that matter are: CAC (Customer Acquisition Cost) — total acquisition spend divided by new customers acquired in the same period, broken down by channel. Payback period — months to recover CAC from a given cohort, calculated as CAC divided by average monthly gross margin per customer. And acquisition channel mix — the % of new customers from each source (paid, organic, referral, direct). The common mistake is optimizing for signup volume rather than downstream retention and revenue. A channel with a 3% activation rate costs 3× more than one with a 9% rate, even if the raw CAC looks the same.

Activation metrics: finding and measuring the aha moment

Activation rate is the % of new users who reach the product's key value moment within a defined window (usually 7 days). Defining what that value moment is requires analysis — typically, you identify the behavior that most strongly predicts long-term retention. For a SaaS tool, it might be 'created first report' or 'invited a teammate'. For a marketplace, it might be 'completed first transaction'. Time to activate — the median hours between signup and first key action — is a leading indicator of activation rate and responds quickly to onboarding changes.

Retention metrics: the most honest signal of product-market fit

D1/D7/D30 retention: the % of users who return on day 1, day 7, and day 30 after their first session. These are the benchmark metrics for consumer apps. For B2B SaaS, use week-1/week-4/month-3 retention. The shape of the retention curve matters as much as the absolute number: a retention curve that flattens (rather than declining to zero) signals product-market fit. L28 (the % of users active on at least one of the past 28 days) is a more robust measure of engagement than DAU/MAU for many product types. Net revenue retention (NRR) — what % of revenue from last year's cohort is retained this year, including expansion — is the most important retention metric for subscription businesses.

Revenue metrics: connecting behavior to monetization

LTV:CAC ratio — lifetime value divided by CAC — is the master metric of growth economics. A ratio above 3:1 is generally considered healthy for SaaS; above 5:1 is excellent. Expansion MRR rate — the monthly growth in revenue from existing customers through upgrades and cross-sell — is a leading indicator of product stickiness and pricing model effectiveness. Growth accounting (new MRR + expansion MRR - churned MRR = net new MRR) is the clearest way to diagnose whether growth is coming from acquisition efficiency or retention leakage.

Growth metrics audit checklist

• CAC is calculated separately by acquisition channel, not as a blended average
• Activation rate is defined and the aha moment is validated with retention data
• Retention curves are built as cohort curves, not as aggregate averages
• D7 or week-1 retention is the primary product health metric
• LTV:CAC ratio is calculated and reviewed quarterly
• Net revenue retention (NRR) is tracked for subscription businesses
• Growth accounting model updated monthly
• All metrics have a clear owner responsible for improving them