> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/pbi-guides/parallels-browser-isolation-administrators-guide/parallels-browser-isolation-licensing.md).

# Parallels Browser Isolation licensing

Parallels Browser Isolation supports several types of licenses. You can purchase a license for a specific duration and number of users.

The user license is consumed dynamically when the end user signs in to Parallels Browser Isolation User Portal to access the resources. The license seat is persistently assigned to the named user. This provides the user the ability to access the resources from any device.

The differences between various types of licenses are explained below.

## License comparison

<table><thead><tr><th width="164">Type</th><th width="142">User seats</th><th width="240">Billing</th><th>Support</th></tr></thead><tbody><tr><td>Subscription (pre-paid)</td><td>Specified in the subscription</td><td>Prepaid per year</td><td>Included</td></tr><tr><td>Subscription (post-paid) - SPLA</td><td>Unlimited</td><td>1 year auto-renewing</td><td>Included</td></tr><tr><td>Trial (Free)</td><td>15 users</td><td>Free (7 days)</td><td>Included</td></tr></tbody></table>

## Subscription

This type of license allows customers to use Parallels Browser Isolation to provide access to resources to their end users. The maximum number of end users allowed to access resources is based on the number of user seats specified in the license and available for the duration of the contract.

## Parallels SPLA

The SPLA (Service Provider License Agreement) is designed for service providers and Independent Software Vendors (ISVs) offering Parallels DaaS to their customers. It allows you to pay for licenses based on the number of seats that you make available to your customers each billing period.

## Trial

This type of license allows you to use Parallels Browser Isolation for free for a short period of time.


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