StackSpend.app
CloudZero
Vantage
Optidome.app
Finout.io
Langfuse
CloudForecast
AWS CloudCost
CloudBuddi
CloudZero
Vantage
Finout.io
CloudForecast
AWS CloudCost
Cloudability
CloudCheckr
CloudBuddi is an intelligent AWS cost optimization platform designed for organizations looking to gain greater control over cloud spending while scaling efficiently. Combining comprehensive cost visibility, FinOps-driven insights and AI-powered recommendations, CloudBuddi helps businesses understand exactly where their cloud budget is being spent, identify savings opportunities, and make data-driven financial decisions. With 50+ automated optimization checks and actionable recommendations delivered within minutes, organizations can identify opportunities to reduce AWS costs by up to 30%, strengthen financial governance, improve resource efficiency, and maximize cloud ROI through a single unified platform.
StackSpend.app CloudBuddiStackSpend.app's answer
Legacy FinOps tools were built for the AWS-only era: they stop at a chart, bill you a percentage of your cloud spend, and can't explain what changed. StackSpend is different on three fronts โ it explains the cause of every spike (cost-to-code correlation), it covers AI/LLM spend as a first-class citizen alongside cloud, and it uses flat, predictable per-tier pricing so your cost-management bill never grows just because your cloud bill did. Setup takes minutes, and a 14-day free trial doubles as a free cost-health audit.
StackSpend.app's answer
StackSpend traces every dollar of cloud and AI spend back to the code, team, and pull request that caused it. Where traditional cost tools show you that spend moved, StackSpend's cost-to-code correlation shows you why โ automatically tying each anomaly to the deploy, config change, or PR behind it. It unifies traditional cloud (AWS, Azure, GCP, Snowflake) and modern AI spend (OpenAI, Anthropic, Cursor) in one view, detects anomalies daily instead of at month-end, and works from day one without a data team building dashboards.
StackSpend.app's answer
Engineering and finance teams who share responsibility for cloud and AI spend โ platform/DevOps engineers, engineering leaders, and FinOps or finance practitioners. It's built for teams running a mix of cloud infrastructure and AI/LLM services who need daily visibility and a shared source of truth, from fast-moving startups through mid-market and enterprise organizations.
StackSpend.app's answer
StackSpend was built by engineers who spent years watching cloud bills climb โ and then watching AI make them climb faster. Founder Andrew Day spent a decade building large-scale systems in regulated banking, where every dollar of infrastructure was accounted for, then eight years in AI startups where teams spent across OpenAI, Anthropic, Cursor, and a dozen cloud services with no way to say why the bill jumped. The cause was almost always a code change โ a PR that flipped a model or widened a query โ but finance dashboards never connected spend to the code behind it. So StackSpend was built to close that gap and turn a monthly surprise into a daily signal.
StackSpend.app's answer
StackSpend is a TypeScript monorepo (Turborepo). The web app is built with Next.js 15, React 19, and Tailwind CSS, deployed on Vercel. The backend API is a Node.js/Express service on Railway, with Supabase (PostgreSQL) for data and auth. Cost forecasting is powered by a Python FastAPI service using Prophet, pandas, and NumPy. AI/LLM features run through a dedicated agents service (Anthropic Claude), and the platform ingests cost data via native provider APIs and the open FOCUS standard.
CloudZero - The worldโs leading cloud cost optimization platform. Allocate 100% of your cloud spend to identify savings opportunities.
Vantage - Vantage is a Fire Pre-Planning and Survey Tool built with the assistance and input of actual fire responders and dispatchers.
Optidome.app - Optidome is a sovereign AI cost management platform, hosted in France. Connect Microsoft 365 Copilot, GitHub Copilot, OpenAI, Anthropic and more to spot unused licenses, track token spend per team, and see what your AI budget actually delivers.
Finout.io - Finout provides DevOps, FinOps, and Finance a holistic cloud cost management solution that helps reduce spend in minutes without adding code or an agent
CloudForecast - CloudForecast is an affordable and easy to use AWS cost and usage reporting tool that saves you time and money. Check the status of your AWS cost and usage in less than two minutes.
Langfuse - Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.