Cloudability is one of the longest-running cloud cost platforms — now part of IBM via the Apptio acquisition. It offers mature multi-cloud cost visibility, audit-ready chargeback / showback workflows, and integration with the broader Apptio TBM (Technology Business Management) tooling. Strong fit for large enterprises where finance, IT, and procurement all need a shared accounting plane.
Refine is purpose-built for AWS — and free. The depth on AWS-specific findings, narrative reports, anomaly detection with AI commentary, and the 380+ security-check catalog sit outside the cost-allocation-and-chargeback lane Cloudability occupies. Trade-off: Refine is AWS-only and lighter on TBM-grade chargeback workflows.
Honest summary: If you need audit-ready chargeback across multi-cloud with TBM integration, Cloudability is built for that. If you want AWS-native cost + security in a free tool without procurement, Refine is the cheaper, deeper option for AWS specifically.