The more workloads that you migrate to the cloud, the more difficult it becomes to predict monthly cloud costs. Cloud services vendors such as Amazon, Google and\u00a0Microsoft can help organizations avoid capital costs for new hardware, but that doesn\u2019t necessarily mean that you have made the most cost-effective decisions about the particular services that these and other cloud vendors offer.\nAnd while it is great that you\u2019re only paying for the services you need, trying to parse your monthly bill requires the skills of a CPA, a software engineer, a commodities trader and a sharp eye for the details.\nThat\u2019s because some cloud resources, such as high-performance, multiple-CPU instances and high-volume storage repositories, run up the meter pretty quickly. Also, prices change frequently, either because vendors are constantly lowering their fees to stay competitive, or have muddied the waters with specials on future resource consumption that reward advance planning called reserve instances.\n\nSome vendors offer gimmicks to get your data by not charging for inbound or outbound data transfers. To make matters even more complicated, as the vendors bring up new cloud services, understanding the pricing implications of choosing one type of service over another can be daunting.\nFinally, a virtual instance of a CPU or a hard drive isn\u2019t necessarily the same across providers, which makes comparison shopping almost impossible.\nThe good news is that there are many tools and services designed to help organizations manage and optimize cloud costs.\u00a0 Tracy Woo of Forrester Research\u00a0recently updated her report on this market segment.\u00a0And Gartner has this\u00a0list of 20 vendors under its \u201cCloud Management and Tooling\u201d category.\nWhy should companies use cloud management tools?\nThere are several reasons to consider using these tools and services. You might be in the market to switch to a new provider in order to add features or because you aren\u2019t happy with your provider\u2019s downtime or level of customer support.\nYou might want to have better insights into your cloud costs by staying on top of pricing changes or better scheduling of your reserve instances to match the best pricing tiers. This is where the commodity trading skill comes in handy.\nCost analysis is just one part of cloud instance optimization, which should be a continuous process. This is because pricing is so dynamic and the various resources are tightly connected in ways that might not be immediately obvious.\nVendors that offer this service have very sophisticated optimization routines. The right tool can also help to identify mismanaged instances or align the size of your instance with your particular needs as you scale up or down.\nFinally, you might want to explore instances that could be more cost or performance effective.\nIronically, figuring out the cost of a tool or service designed to help you figure out cloud costs can itself be somewhat confusing. Some of the vendors have very transparent and public pricing pages, others will allow you to review their rate sheets only after you have signed up, and some go so far as to make it clear you will only get the \u201cfree\u201d tier access once you have registered and set yourself up for an onslaught of marketing calls and emails.\nThis growing market segment has many players. Here is a sampling of vendors that fall into the three major categories of cloud cost management offerings.\n1. AWS-only tools, both native and third-party\nAWS has numerous tools of its own to help you understand your monthly cloud bill and predict your future cloud costs. These include:\nAWS Cost Explorer\u00a0is the grandaddy of costing analysis portals and has plenty of data \u2013 you just have to wade through it all to figure it out.\nCost and Usage Report\u00a0explains what these monthly reports are and how to make sense of them.\nAWS Cost Anomaly Detection\u00a0helps you\u00a0spot odd spending patterns.\nOther tools that provide optimization recommendations include\u00a0AWS Trusted Advisor,\u00a0AWS CloudWatch,\u00a0\u00a0Cloudtrail, and\u00a0S3 Analytics.\nQualys\u2019\u00a0TotalCloud\u00a0is a third-party tool specifically for AWS. There\u2019s a 15-day free trial along with a forever free plan if your monthly bill is less than $5,000. Otherwise, plans start at $49\/mo. TotalCloud has hundreds of pre-defined templates that can be used to automate and optimize various AWS tasks, such as automatically terminating unused instances or detecting anomalies.\n2. Multi-cloud comparison tools\nMost enterprises of any size use\u00a0multiple cloud providers, so you\u2019ll want to explore these tools. They either go wide, covering multiple vendors, or deep, covering many services of a particular vendor. \u00a0\nIn many cases, capabilities are limited once you get beyond the more familiar cloud services such as CPU, disk and memory. Some have free trials, which you should definitely try before paying anything. Here are some examples:\nApptio Cloudability\u00a0offers reserve instance planners and right-sizing analysis. Apptio bought Cloudability in 2019 and has other optimization tools in its portfolio. For Cloudability, there is a 30-day free trial (with detailed registration and potential sales exposure) and then it will cost $499\/mo.\nCloudBolt\u00a0has two different offerings (a cloud management platform and a costing optimization tool, which supports\u00a0the big three and VMware). Free trials require registration and potential sales lead exposure. No pricing is available.\nCloudorado.com\u00a0compares 11 cloud server, compute and storage providers (including the big three) and normalizes CPU with AWS\u2019s ECU as a way to compare CPU power across the service providers. You set your parameters for RAM, storage, CPU and OS types and it shows you the total monthly cost and you can drill down into details on each provider. There\u2019s a nice balance between giving you enough information and a broad field of providers, so it is a good starting place as long as you are interested in one of the providers analyzed. The service is free (vendors pay to be listed) and it is up to you to optimize your own spends and to get your parameters accurately stated.\nCloudHarmony.com\u00a0offers a directory of more than 100 providers. However, it just shows basics of each one (along with uptime stats from Panopta, which is an independent way to examine the vendor\u2019s promises and claims) with no costing info. If you are open to try one of the lesser-known providers, this is a good place to at least get acquainted with what each has to offer.\nDensify\u00a0has a variety of resource optimization tools, along with PaaS costing for the big three plus VMware, Openshift and Kubernetes. There are free (requiring registration) trials, but no public pricing. There is also a page describing the configuration requirements to run their tools.\nFlexera.com One\u00a0is a full-service offering for the big three along with Oracle and IBM clouds that includes costing and optimization along with other IT asset-analysis tools. No pricing is available but it is based on a fixed\u00a0percentage of your cloud costs.\nGorillaStack Cost Optimization Tool,\u00a0targeted at AWS and Azure, is priced on your overall cloud spend, starting at $50\/mo.\nHarness\u00a0covers the big three, as well as Kubernetes. It has a lot more than costing features and is designed to be used in continuous software delivery environments. There is both an open source and a forever free plan (for up to five services). Paid plans start at $100 per service per month for up to 100 services, and an unlimited plan with a free 14-day trial.\nKomiser\u00a0covers IBM\u2019s cloud and others. There are free and paid plans starting from $169\/mo.\nNetApp\u00a0has several different tools for the big three, including Spot.io and CloudCheckr that are part of its larger analysis platform.\nParkMyCloud\u00a0has been acquired by\u00a0IBM. It also covers Alibaba\u2019s Cloud. No pricing is available.\nVirtana Cloud Cost Management\u00a0used to be called Metricly CloudWisdom. It covers AWS and Azure only, there is a forever free trial for a single resource, otherwise $5\/device\/mo. Given this price point, this could be a good starting place for smaller cloud installations or to experiment with the genre.\nVMware CloudHealth\u00a0covers the big three, but you have to run separate tools for each provider, which somewhat defeats the comparison purpose. VMware bought CloudHealth in 2018\n3. Consultants (for the most part)\nThe third option is cloud consultants, who often offer a free or low-cost comparison or costing analysis to entice you sign up for their more complete optimization services, which typically charge a percentage of your total cloud spend. These include:\nCloudsaver.com\u00a0is for AWS only. The company says its consultants use a proprietary suite of more than 30 cloud optimization tools to help save money for their customers.\nCloud Custodian\u00a0has open source YAML rules that can help you set various run-time parameters to save money on your big three cloud bills.\nDuckbill Group\u00a0has a free service (with registration) to examine your AWS bill, but they want to get you into paying for consulting services soon afterwards.\nRackspace Cloud Optimization\u00a0consults on the big three and also includes VMware. No pricing provided.\nCloudZero.com\u00a0has\u00a0their own costing analysis tool that\u00a0also supports Kubernetes and integrates with Snowflake. But they are mostly in the business to offer\u00a0a lot of other advice.\u00a0Free costing analysis trials require registration and potential sales lead exposure.\nTrackIT\u00a0sells only AWS managed services add-ons as well as custom cloud costing consulting.\nKubecost\u00a0is just for analyzing Kubernetes costs. Free for one cluster with 15-day history, paid plans start at $449\/month.\nOpsani\u00a0is now part of Cisco and their AppDynamics platform which does continuous cloud run-time optimization on the big three, Kubernetes and other clouds. Plans available for just CPU and memory optimization, or for deeper integration with frameworks such as CloudBees and Github. Their pricing page which shows several plans without actually revealing any dollar figures.