Glossary
What is Cost Per Acquisition (CPA) ?
CPA measures the average cost to acquire a user who completes a specific in-app action, providing a deeper efficiency metric than CPI.

Overview
Cost Per Acquisition (CPA): Definition & Meaning | Segwise Glossary
A concise mobile marketing definition for teams working across creative analytics, paid acquisition, and performance reporting.
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Overview
CPA measures the average cost to acquire a user who completes a specific in-app action, providing a deeper efficiency metric than CPI.
Unlike CPI which counts any install, CPA measures quality acquisition: users who took the action you actually care about.
CPA is the natural next metric after CPI in the UA efficiency hierarchy.
A campaign may achieve excellent CPI but poor CPA if the installs it drives don't engage or convert in-app.
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