--- title: How does Turbo-Chart count Sessions and Usage description: This article provides guidance on how Turbo-Chart counts sessions and usage for Turbo-Chart Enterprise and Session based customers --- [Skip to content](https://learn.turbo-chart.com/how-does-turbo-chart-count-sessions-and-usage#main-content) English Show submenu for translations [More support](https://learn.turbo-chart.com/kb-tickets/new?hsLang=en) [Ticket portal](https://help.turbo-chart.com/tickets?hsLang=en) [![Turbo-Chart](https://learn.turbo-chart.com/hs-fs/hubfs/TC_URL_BLUE_on_CLEAR_1246_197.png?width=1246&height=197&name=TC_URL_BLUE_on_CLEAR_1246_197.png)](https://turbo-chart.com/?hsLang=en) - [Home](https://turbo-chart.com/) - [Product](https://turbo-chart.com/product-presentation) Show submenu for Product - [Changelog](https://turbo-chart.com/changelog) - [Presentation & Demonstration](https://turbo-chart.com/product-presentation) - [Tilos vs Turbo-Chart Training](https://turbo-chart.com/tilos-training-tutorial) - [Features](https://turbo-chart.com/features) - [Chart Samples](https://turbo-chart.com/sample-interactive-viewer-charts) - [Purchase](https://turbo-chart.com/purchase) - [Help](https://learn.turbo-chart.com/) Show submenu for Help - [F.A.Q.](https://turbo-chart.com/faq) - [Knowledgebase](https://learn.turbo-chart.com/) - [Licence Portal](https://portal.turbo-chart.com/) - [Time Location Mini-Course](https://turbo-chart.com/time-location-charting-mini-course) - [Contact Us](https://turbo-chart.com/contact-us) - [About](https://turbo-chart.com/about) Show submenu for About - [Customers](https://turbo-chart.com/turbo-chart-customers) - [About Us](https://turbo-chart.com/about) - [News](https://turbo-chart.com/blogs) - [Contact Us](https://turbo-chart.com/contact-us) - [Terms](https://turbo-chart.com/terms) Open main navigation Close main navigation - [Home](https://turbo-chart.com/) - [Product](https://turbo-chart.com/product-presentation) Show submenu for Product - [Changelog](https://turbo-chart.com/changelog) - [Presentation & Demonstration](https://turbo-chart.com/product-presentation) - [Tilos vs Turbo-Chart Training](https://turbo-chart.com/tilos-training-tutorial) - [Features](https://turbo-chart.com/features) - [Chart Samples](https://turbo-chart.com/sample-interactive-viewer-charts) - [Purchase](https://turbo-chart.com/purchase) - [Help](https://learn.turbo-chart.com/) Show submenu for Help - [F.A.Q.](https://turbo-chart.com/faq) - [Knowledgebase](https://learn.turbo-chart.com/) - [Licence Portal](https://portal.turbo-chart.com/) - [Time Location Mini-Course](https://turbo-chart.com/time-location-charting-mini-course) - [Contact Us](https://turbo-chart.com/contact-us) - [About](https://turbo-chart.com/about) Show submenu for About - [Customers](https://turbo-chart.com/turbo-chart-customers) - [About Us](https://turbo-chart.com/about) - [News](https://turbo-chart.com/blogs) - [Contact Us](https://turbo-chart.com/contact-us) - [Terms](https://turbo-chart.com/terms) - English Show submenu for translations - [More support](https://learn.turbo-chart.com/kb-tickets/new) - [Ticket portal](https://help.turbo-chart.com/tickets) How can we help you? - There are no suggestions because the search field is empty. 1. [Turbo-Chart Help](https://learn.turbo-chart.com/?hsLang=en) 2. [FAQs](https://learn.turbo-chart.com/faqs?hsLang=en) March 13, 2024 # How does Turbo-Chart count Sessions and Usage ## This article provides guidance on how Turbo-Chart counts sessions and usage for Turbo-Chart Enterprise and Session based customers For Enterprise and Session based customers, Turbo-Chart counts usage based on the number of sessions. A session is defined as a unique user (by registered email) on a unique device, within a 24hr period. Unique devices are typically the Windows PC Name. For Example, **user1@email.com** launches Turbo-Chart on **Device1** at 9am. They may launch and use Turbo-Chart as little or as often as required on Device1 until 8:59am the next day and this will count as one single session.  **user2@email.com** also launches Turbo-Chart on **Device2** at 1pm the same day. Their usage on Device2 through to 12:59pm the following will count as another single session . This will mean Two sessions in total have been activated. If **user1@email.com** launches Turbo-Chart on **Device1** and then **user2@email.com** also launches Turbo-Chart on **Device1,** this will count as two sessions. If **user1@email.com** launches Turbo-Chart on **Device1** and then launches Turbo-Chart on **Device2** also, this will count as two sessions.       - [Getting started](https://learn.turbo-chart.com/getting-started?hsLang=en) - [Importing Data](https://learn.turbo-chart.com/importing-data?hsLang=en) - [Working with Charts](https://learn.turbo-chart.com/working-with-charts?hsLang=en) - [Printing and Publishing](https://learn.turbo-chart.com/printing-and-publishing?hsLang=en) - [FAQs](https://learn.turbo-chart.com/faqs?hsLang=en) - [Troubleshooting](https://learn.turbo-chart.com/troubleshooting?hsLang=en) - [Tickets](https://22261683.hs-sites.com/tickets-view) [![logo-white-line-02 (2)](https://learn.turbo-chart.com/hubfs/logo-white-line-02%20(2).svg "logo-white-line-02 (2)")](https://22261683.hs-sites.com/home?hsLang=en) Turbo-Chart Support, Linear Project Software Pty Ltd, Sydney, Australia & London, United Kingdom [mailto:support@linearprojectsoftware.com](mailto:support@linearprojectsoftware.com) Copyright © 2025, Linear Project Software Pty Ltd