Day-N ROAS (D7 / D30 ROAS)

Revenue generated by an install cohort within N days of installing, divided by the spend to acquire them; used to forecast payback.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Day-N ROAS is the revenue an app install cohort generates within N days of installing, such as 7 or 30 days, divided by the ad spend used to acquire that cohort. Mobile marketers use early readings like D7 ROAS to forecast whether a campaign will pay back and to decide quickly where to scale budget.