For each source server that you want to migrate, you can use AWS Application Migration Service for a free period of 2,160 hours, which is 90 days when used continuously.
The free period starts as soon as you install the AWS Replication Agent on your source server and continues during active source server replication.
If you do not complete your migration of a specific server within the free period, you will be charged per hour while you continue replicating that server. Most customers complete migrations of servers within the allotted free period.
Note that while your source servers are actively replicating, including during the free period, you will incur charges for any AWS infrastructure that is provisioned by AWS Application Migration Service to facilitate data replication. You will also incur charges for resources that are provisioned when you launch test or cutover instances, such as compute (Amazon EC2) and storage (Amazon EBS) resources, according to your AWS pricing plan.
Please refer to the AWS Application Migration Service pricing page for more details.