Free tool
A cost tool that takes a cut of your bill still costs you
Percentage-of-spend and percentage-of-savings pricing models charge more as your infrastructure — and your need for the tool — grows. See what that adds up to next to CostMon's flat monthly rate, computed live in your browser.
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What would a cut of your spend actually cost you?
Drag in your real numbers and adjust the illustrative rate sliders. Everything below computes in your browser — nothing you type here is sent anywhere.
Your monthly spend
AWS, GCP, Azure
Anthropic, OpenAI, and other model providers
Datadog, Vercel, and the rest of the tool stack
Typical industry rates
Illustrative monthly rate charged by percentage-of-spend cost tools, as a share of the spend they monitor.
Illustrative rate charged by percentage-of-savings cost tools, as a share of the waste they claim to find.
Illustrative typical ranges, not a quote from any named vendor — drag to match what you've seen quoted.
At $33,000/mo spend, a %-of-spend tool would cost $9,900/yr and a %-of-savings tool would cost $24,750/yr. CostMon costs $588/yr flat (Professional) — you keep the difference.
- % of spend model
- $9,900/yr
- % of savings model
- $24,750/yr
- CostMon flat (Professional)
- $588/yr
Rates above are illustrative typical ranges you can adjust — not a quote for any named vendor. The %-of-savings figure assumes the same blended waste rate as the savings calculator (Flexera 2025 State of the Cloud: 27% cloud / 25% AI / 20% SaaS). CostMon's flat figure is pulled directly from /pricing and auto-selects a tier by spend.
Pricing is one of seven criteria — see the full buyer's guide →
FAQ
Common questions about percentage vs. flat pricing
What's the difference between flat, percentage-of-spend, and percentage-of-savings pricing?
Flat pricing charges one fixed monthly rate no matter how much you spend or save. Percentage-of-spend tools charge a monthly fee calculated as a share of the cloud, AI, and SaaS spend they monitor — so your bill for the tool rises as your infrastructure bill rises. Percentage-of-savings tools instead charge a share of the waste or savings they claim to have found, which can be hard to audit and creates an incentive to take credit for savings you'd have made anyway.
Why would a percentage-based cost tool cost more as I grow?
Because the fee is defined as a fraction of a number that goes up as your infrastructure scales — your spend, or the savings calculated from it. A tool that monitors $2M/mo in cloud spend at 2.5% costs $50,000/yr regardless of how much actual work the tool does at that scale, which is disconnected from the tool's own cost to run.
Are the percentage rates in this tool real numbers from specific vendors?
No — they're adjustable, illustrative rates representative of the ranges publicly documented for percentage-of-spend and percentage-of-savings cost-management tools generally. Drag the rate sliders to match a quote you've actually received; we deliberately don't name or price any specific competitor here.
How does CostMon calculate the flat price shown here?
It's pulled live from the same plan data that powers the Pricing page — Professional at $49/mo or Enterprise at $199/mo — auto-selected by your entered spend, so the number here can never drift from what you'd actually be quoted.
Is CostMon's flat fee ever a percentage of anything?
No. CostMon charges one flat monthly rate per plan tier, never a cut of your cloud bill and never a cut of any savings we help you find. Your price stays the same whether you monitor a thousand dollars a month or a million.
See what your stack really costs.
Connect your first providers in minutes and give finance and engineering one number they both trust. Flat pricing — never a percentage of your bill or your savings.