Cost Per Install (CPI) definition

Cost Per Install (CPI)

CPI measures the cost to acquire a single app install: CPI = Total Spend / Number of Installs. It’s a standard KPI for user acquisition campaigns in the mobile app ecosystem.

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Ad Fraud and Scamming in Digital Advertising Glossary

Ads.txt / App-ads.txt Glossary

Mobile Advertising Glossary: Metrics and KPIs

oRTB Glossary

OTT / CTV Programmatic advertising glossary

Performance Marketing Glossary

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A ⁽⁹⁾B ⁽²⁾C ⁽¹⁰⁾D ⁽²⁾E ⁽¹⁾F ⁽²⁾I ⁽⁵⁾L ⁽³⁾M ⁽²⁾P ⁽¹⁾R ⁽²⁾S ⁽⁵⁾U ⁽¹⁾V ⁽¹⁾W ⁽¹⁾

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More terms of Metrics

Click-Through Rate (CTR) mobile-advertising-glossary-metrics

CTR is the ratio of clicks to impressions, expressed as a percentage. It shows how effective an ad is at encouraging users to engage: CTR = (Clicks / Impressions) * 100. High CTR often indicates strong ad relevance and appeal.

Metrics

Audio Duration mobile-advertising-glossary-metrics

Captures how long a user listens to an audio ad (e.g., complete plays, average duration, listen-through rate).

Metrics

DAU/MAU Ratio mobile-advertising-glossary-metrics

This metric indicates user stickiness or loyalty. A DAU/MAU ratio closer to 1 means users return frequently throughout the month.

Metrics

App Launch Time mobile-advertising-glossary-metrics

Time from tapping the app icon until users see and interact with the app. Includes Time to Initial Display (TTID) and Time to Fully Drawn (TTFD). Typical targets: < 5 s cold start, < 1.5–2 s warm/hot start

Metrics

App Crashes mobile-advertising-glossary-metrics

The rate at which an app unexpectedly closes during user sessions. Expressed as (Crashes ÷ Sessions) × 100%. High crash rates degrade UX and negatively impact app ratings.

Metrics

Skips / Skip Rate mobile-advertising-glossary-metrics

For skippable ads, this indicates how often users skip. High skip rates can reflect low ad relevance.

Metrics

Fraud Rate mobile-advertising-glossary-metrics

The percentage of ad interactions (clicks, installs, impressions) that are determined to be fraudulent, such as bot activity, fake installs, or click spamming. High fraud rates can skew performance data and waste budget.

Metrics

Video Duration Metrics mobile-advertising-glossary-metrics

Measures how much of a video ad was watched (e.g., quartile completion, full views, duration rate). Key for video campaign evaluation.

Metrics

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