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Session Length definition

Session Length

This measures how much time a user spends in the app during a single session. Longer session lengths often indicate deeper engagement.

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More terms of 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

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 Mille (CPM) mobile-advertising-glossary-metrics

CPM, or cost per thousand impressions, is a metric used to price ad inventory based on 1,000 ad impressions. It’s often used for awareness campaigns focused on visibility rather than clicks or conversions.

Metrics

Install Rate (IR) mobile-advertising-glossary-metrics

The percentage of users who clicked on an ad and went on to install the app. It helps advertisers evaluate how compelling their app offering is post-click.

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

Bid Rate mobile-advertising-glossary-metrics

In programmatic advertising, this is the proportion of total ad requests for which a DSP submits a bid. A low bid rate might indicate strict targeting or bidding filters.

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

Daily Active Users (DAU) mobile-advertising-glossary-metrics

DAU measures the number of unique users who engage with the app on a daily basis. It's essential for tracking regular usage.

Metrics
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