---
title: "How do we calculate ControlUp Real-Time VDI licenses?"
slug: "how-do-we-calculate-controlup-licenses"
updated: 2026-06-04T13:28:16Z
published: 2026-06-04T13:28:16Z
canonical: "support.controlup.com/how-do-we-calculate-controlup-licenses"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.controlup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How do we calculate ControlUp Real-Time VDI licenses?

ControlUp for VDI can monitor and manage a wide variety of resources/objects in the virtual and/or physical datacenters.

ControlUp continuously counts the total number of objects that are currently being monitored and requires a number of licenses that adequately cover the size of the environment.

#### Concurrent Licenses

Concurrent licenses are counted as number of daily managed single user workstations + peak number of concurrent RDS/multi-user sessions.

When using concurrent licensing billed through the daily usage feed, the peak RDS/multi-user sessions metric measures the highest concurrent session count observed during a single calendar day.

- Daily Evaluation: Captures the maximum volume of simultaneous sessions reached at any point during that 24-hour calendar window.
- Calculation Formula: ControlUp determines your total usage for the day using the following logic:

**Maximum Daily Usage** = Workstations + Daily Session Peak
- Reporting: This consolidated number (reflecting the previous calendar day's peak) is compiled and reported to the system the following day.

#### Named User Licenses

- Named user licenses are counted for both Microsoft RDSH/VDI machines and non-RDSH/VDI machines.
- Real-Time DX license based on the maximum of either:
  - ControlUp Real-Time DX historical data (number of workstations + sessions running server machines).
  - Unmanaged Citrix/Horizon sessions.
- If you use the same username/user account in both the Azure VM and Citrix VM, we count this as a single named user.
- Agentless unmanaged VMs are NOT counted here.
- Agentless Cloud instances are NOT counted here.
- General-purpose servers are NOT counted here.

To check your current named user count for licensing, open the web interface, go to **Reports** > **Session Activity**, and see the number shown in the **Unique Users** widget. ![number shown in the Unique Users widget](https://cdn.document360.io/098100b7-b9da-4bea-b4b9-017140ab863e/Images/Documentation/VDILicenseUserName.png)