--- title: "User with more than Three Devices %" slug: "user-with-more-than-three-devices" updated: 2024-03-15T11:04:43Z published: 2024-03-15T11:04:43Z canonical: "docs.mapp.com/user-with-more-than-three-devices" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.mapp.com/llms.txt > Use this file to discover all available pages before exploring further. # User with more than Three Devices % Shows the percentage of visitors that used more than three devices (or browsers). | Calculation | Visitors *[Filter: "Browsers, Unique greater than 3"]* / Visitors * 100 | | --- | --- | Note that users can only be identified across multiple devices or browsers when passing the login information as a customer ID and/or when using the Cross Device Bridge.