Glossary

What is ROAS (Return on Ad Spend)?

How to calculate ROAS, what good ROAS looks like and how to improve it.

ROAS (Return on Ad Spend) measures how much revenue your app generates for every unit of currency spent on advertising. It is the primary metric for evaluating the profitability of mobile ad campaigns.

ROAS Formula

ROAS = Revenue Generated ÷ Ad Spend × 100%

Example: If you spend $1,000 on ads and generate $4,000 in revenue, your ROAS is 400% (or 4x).

What is a Good ROAS?

ROASInterpretation
Below 100%Losing money on ads
100-200%Breaking even (after costs)
200-400%Profitable — industry average
400%+Strong performance

ROAS vs ROI

ROAS measures revenue relative to ad spend only.

ROI measures profit relative to total costs (including COGS, salaries, overhead etc.)

A campaign with 300% ROAS might still have negative ROI if the cost of goods sold and other expenses are high.

D1, D7, D30 ROAS

In mobile apps, ROAS is often measured at different time horizons to understand revenue recovery over time:

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