Cloudability - Cloudability lets you monitor, manage and communicate your cloud costs with one easy tool.
GorillaStack - Automate & Optimise AWS With Your Own Flexible Rules Engine
CloudCheckr - CloudCheckr provides security, cost and usage reporting and analytics to help users manage their AWS deployment.
Stackiton - AWS Cloud Management Simplified
AWS Cost Explorer - Cloud Cost Management
Amazon CloudWatch - Amazon CloudWatch is a monitoring service for AWS cloud resources and the applications you run on AWS.