Cost Per Install (CPI)

Cost Per Install (CPI) measures the cost of acquiring a single app download from an advertising campaign. It is a key metric for mobile app marketers.

Formula

CPI = Total Ad Spend / Number of Installs

Why It Matters

CPI is the foundational metric for app growth campaigns. It helps app marketers evaluate channel efficiency and plan budgets. Compare CPI against your app's LTV to ensure you're acquiring users profitably.

Benchmarks

• iOS global average: $3.50–$5.00
• Android global average: $1.50–$3.00
• Gaming apps: $1.00–$5.00
• E-commerce apps: $2.00–$4.00