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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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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More terms of 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

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

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

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

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

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

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

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

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