About the Cost Per Install Calculator
Cost per install (CPI) of an app campaign: ad spend divided by installs.
Also known as: cpi calculator, app install cost.
How to use this calculator
- Enter ad spend, installs.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Open “Step-by-step” to see how the answer was worked out.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Cost per install = Ad spend ÷ Installs
Worked example
Using the values pre-filled in the calculator above:
- Ad spend = 8,000
- Installs = 5,200
the calculator returns:
- Cost per install: 1.54
Working
Cost per install = 8,000 ÷ 5,200 = 1.5385