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Cost Per Install Definition
Cost Per Install (CPI) is a mobile marketing metric that calculates how much is spent in ads to drive each new app installation. It’s essential for measuring acquisition efficiency and ROI.
How Cost Per Install Works
- Track the number of paid installs generated during a campaign.
- Divide total campaign spend by the number of installs.
- Measure via attribution platforms like AppsFlyer, Adjust, or Branch.
Example of Cost Per Install
A travel app spends $5,000 on ads and gains 1,000 installs, resulting in a CPI of $5.
Why Cost Per Install Matters in Advertising
- Ensures acquisition costs stay below LTV.
- Enables comparison of ad channel efficiency.
- Optimizes targeting and creatives for cost reduction.
- Key for scaling campaigns sustainably.
