If you do it right, AWS can be an excellent low-cost option to host a service. This guy figured out how to rock a nice, quick web service using AWS. The breakdown is costs is surprising. Cheggitout:
…the total AWS charges for the month of November add up to $11.12. This is the total bill for processing the 2.1 million API requests and all of the infrastructure necessary to support them.
The above costs power the service TimerCheck.io.