CloudCheckr is described as 'unifies IT, security and finance teams around the cloud and provides total visibility, deep insight, and cloud automation and governance'. There are six alternatives to CloudCheckr, not only websites but also apps for SaaS. The best alternative is Firemon, which is free. Other great sites and apps similar to CloudCheckr are GorillaStack (Freemium), Nutanix Beam (Paid), CloudKeep (Free) and FrugalBot (Paid).
Firemon lets you gain control of your Google Firebase usage costs. Get your monthly costs in an easy to use dashboard with custom created threshold alerts via the channel that is most convenient to you.
Manage your AWS cloud using GorillaStack's toolset. Take greater control over your billing and usage with Power Cycle, Power Scale and Alerts. Power Cycle - turn your EC2 instances on and off by schedule to avoid wastage.