What is CheckFa.st?

CheckFast validates market demand and financial viability for product ideas using Google Search data. Enter a brief description of your idea and receive TAM, CAC, LTV, sales estimates, and a P&L statement in an Excel file with dynamic formulas. The tool calculates total monthly search volume, CPC, competition score, and ROAS, providing a clear view of potential revenue and acquisition cost.

Results are generated in about 20 seconds, enabling founders to assess demand, target audience, and profitability quickly. CheckFast is designed for entrepreneurs and builders who need data‑driven insights to determine if a product meets market needs.

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CheckFa.st's key features

Validate market demand via Google
Calculate TAM, CAC, LTV, sales
Export results to Excel
Editable P&L with dynamic formulas
Analyze Google keywords, CPC, competition
Fast 20-second result delivery

CheckFa.st use cases

Validate a new SaaS product idea by estimating TAM, CAC, LTV, and generating a P&L spreadsheet in approximately 20 seconds, allowing founders to make data‑driven go/no‑go decisions
Forecast sales and ROI for a local restaurant’s menu items by using Google search demand and CPC data, then auto‑generating a dynamic P&L to guide pricing and marketing spend
Compare competition scores across several fitness app niches to pinpoint the most profitable segment, enabling rapid market entry and resource allocation