AWS Free Usage Tier (Per Month):
750 hours of Amazon EC2 Linux Micro Instance usage (613 MB of memory and 32-bit and 64-bit platform support) – enough hours to run continuously each month*
750 hours of Amazon EC2 Microsoft Windows Server Micro Instance usage (613 MB of memory and 32-bit and 64-bit platform support) – enough hours to run continuously each month*
750 hours of an Elastic Load Balancer plus 15 GB data processing*
30 GB of Amazon Elastic Block Storage, plus 2 million I/Os and 1 GB of snapshot storage*
5 GB of Amazon S3 standard storage, 20,000 Get Requests, and 2,000 Put Requests*
100 MB of storage, 5 units of write capacity, and 10 units of read capacity for Amazon DynamoDB.**
25 Amazon SimpleDB Machine Hours and 1 GB of Storage**
1,000 Amazon SWF workflow executions can be initiated for free. A total of 10,000 activity tasks, signals, timers and markers, and 30,000 workflow-days can also be used for free**
100,000 Requests of Amazon Simple Queue Service**
100,000 Requests, 100,000 HTTP notifications and 1,000 email notifications for Amazon Simple Notification Service**
10 Amazon Cloudwatch metrics, 10 alarms, and 1,000,000 API requests**
15 GB of bandwidth out aggregated across all AWS services*
750 hours of Amazon RDS for SQL Server Micro DB Instance usage (running SQL Server Express Edition in a single Availability Zone) – enough hours to run a DB Instance continuously each month
20 GB of database storage
10 million I/Os
20 GB of backup storage for your automated database backups and any user-initiated DB Snapshots
In addition to these services, the AWS Management Console is available at no charge to help you build and manage your application on AWS.