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Glossary · Definition

Session

A session is a period of continuous activity by a user in an app, typically ended after a defined span of inactivity or when the app is backgrounded. Sessions provide the unit for metrics like session length, sessions per user, and session-based crash rates. Tying events, screens, and replays to a session gives each signal a shared timeline.


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Mobile attribution

Connecting an install, signup, or purchase to the campaign, source, or link that drove it.

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Session replay

A reconstruction of a user session from captured screens, touches, and events.

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Crash-free rate

The percentage of users or sessions that did not experience a crash in a period.

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Deep link

A link that opens a specific screen inside an app rather than a home screen.

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