What this helps you decide
Use CPI to judge whether a campaign is acquiring players at a sustainable price and to compare networks or creative tests on the same cost-per-install basis.
How to use this tool
Enter the requested values above. The result updates immediately so you can compare scenarios without creating an account or uploading data.
How the calculation works
CPI = total campaign spend ÷ attributed installs
Example
A $300 campaign that produces 240 attributed installs has a CPI of $1.25.
Why this result matters
CPI shows the acquisition price of each install, but it should be compared with retention, ad revenue, and purchase revenue. Cheap installs are not automatically profitable players.
Tips for a more useful estimate
- Use attributed installs from the same date range as spend.
- Compare CPI by country and campaign.
- Do not mix organic installs into paid CPI.
Frequently asked questions
What is a good CPI?
It depends on the game, country, platform, and value produced by each player.
Is CPI the same as CPA?
CPI measures installs; CPA can measure another action such as a purchase or registration.
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