You could always use the AWS free tier if you're still eligible. Unless you're serving a ton of traffic that would break you well out of the free tier's plan,

You could always use the AWS free tier if you're still eligible. Unless you're serving a ton of traffic that would break you well out of the free tier's plan, it should be free or something in the $2 or less range even with pretty high traffic figures. The catch is it will only be available at that price for the first 12 months.