App Launch Time definition

App Launch Time

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

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Mobile Advertising Glossary: Metrics and KPIs

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More terms of Metrics

Monthly Active Users (MAU) mobile-advertising-glossary-metrics

MAU is the number of unique users interacting with the app over a 30-day period. It's a standard metric for user base size and growth.

Metrics

Session Duration mobile-advertising-glossary-metrics

Time spent within an in-app branded experience. Complements session length and reflects depth of engagement.

Metrics

Impression mobile-advertising-glossary-metrics

An impression is counted each time an ad is served and appears on a user’s device screen, regardless of whether the user interacts with it. It is one of the most basic and foundational ad delivery metrics used to measure reach and exposure.

Metrics

Cost Per Action (CPA) mobile-advertising-glossary-metrics

CPA is the amount spent to drive a specific user action (e.g., a subscription, sign-up, or in-app purchase). It’s commonly used in performance-based advertising models.

Metrics

Attention Metrics mobile-advertising-glossary-metrics

Metrics that assess how much attention users give to an ad, using data signals like eye tracking, time in-view, or interaction depth.

Metrics

Cost Per Install (CPI) mobile-advertising-glossary-metrics

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.

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

Ad Frequency mobile-advertising-glossary-metrics

The average number of times an ad is served to the same user. Helps assess saturation and avoid ad fatigue.

Metrics

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