Blended Cost per App Install measures the average cost to acquire one mobile app install across all your advertising platforms combined.
| Metric | Definition |
|---|
| Blended Spend | Total advertising spend across Meta, Google, and TikTok combined |
| Blended App Installs | Total app installs attributed across all advertising platforms |
| Metadata | |
|---|
| Type | Currency |
| Data Source | Meta Ads, Google Ads, TikTok Ads |
| Aggregation | Ratio |
Example
Your app campaigns spent $15,000 across all platforms and generated 3,000 installs in March.
| Platform | Spend | App Installs | CPI |
|---|
| Meta Ads | $8,000 | 1,800 | $4.44 |
| Google Ads | $5,000 | 900 | $5.56 |
| TikTok Ads | $2,000 | 300 | $6.67 |
| Blended | $15,000 | 3,000 | $5.00 |
How It Works
Blended CPI aggregates your total advertising spend and total app installs across Meta, Google, and TikTok, then calculates the average cost per install. This gives you a single efficiency metric that accounts for your entire mobile acquisition budget regardless of which platform drove the install.
When to Use
| Scenario | Action |
|---|
| Setting acquisition budgets | Use blended CPI to establish target cost thresholds for mobile campaigns |
| Comparing to industry benchmarks | Compare your overall CPI against category averages without platform bias |
| Executive reporting | Report a single efficiency metric that represents total mobile acquisition cost |
| Evaluating media mix | Identify if shifting budget between platforms would lower overall CPI |
| Metric | Relationship |
|---|
| Blended Spend | Numerator — total cost driving app installs |
| Blended App Installs | Denominator — total installs acquired |
| Blended CPA | Similar efficiency metric for all conversions |
