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

# Aviatrix PaaS Subscriptions

> Subscribe to Aviatrix PaaS

You can subscribe to Aviatrix Cloud Network Security Platform-as-a-Service
(Aviatrix PaaS) as a 30-day free trial or a paid plan.

## Subscribe to a Free Trial Plan

The free trial version is full-featured and expires after 30 days. You receive
notifications two weeks, one week, and one day prior to the expiration of the
free trial plan.

You can subscribe to a paid plan any time during the trial period and retain all
data accumulated during the trial.

## Subscribe to a Paid Plan

You can subscribe to an Aviatrix Cloud Network Security Platform-as-a-Service
(Aviatrix PaaS) plan on Azure and AWS.

On Azure Marketplace, you can subscribe directly to a paid plan. You do not need
to subscribe to a free trial plan first.

On AWS Marketplace, you must first subscribe to a free trial. You can upgrade to
a paid plan at any time.

If you do subscribe to a 30-day free trial, whether on Azure or AWS, you can
update to a paid plan at any time during your 30-day free trial. If you convert
to a paid plan, you can retain whatever data you accumulated during the trial.

Visit the Aviatrix Platform-as-a-Service (PaaS) listing on
[Azure Marketplace](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/aviatrix-systems.aviatrix-paas-secure-nat?tab=Overview)
or
[AWS Marketplace](https://aws.amazon.com/marketplace/pp/prodview-bkbjqukfswaa2)
for details about the paid plan options.

## How to Subscribe or Upgrade

For subscription details, see the following topics:

* [Azure Secure NAT Gateway Getting Started](/docs/cloud/getting-started/azure/azure-getting-started)
* [Upgrade a Developer Evaluation Trial to a Paid Plan on Azure](/docs/cloud/getting-started/azure/azure-upgrade-subscription)
* [AWS Getting Started for Aviatrix Cloud Network Security PaaS](/docs/cloud/getting-started/aws/aws-getting-started)
* [Upgrade a Free Trial to a Term Subscription on AWS](/docs/cloud/getting-started/aws/aws-upgrade-subscription)


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