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Validate your startup idea in minutes, not weeks
Enter your product idea to get all the metrics needed to validate market demand and financial viability, powered by Google search data.
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165+ builders validate demand and financials
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Before
- ❌ Uncertainty about market demand
- ❌ Lack of data-driven validation
- ❌ Generic ChatGPT market analysis
- ❌ Not understanding customer needs
- ❌ Time-consuming market research
After
- ✅ Validate market and financial viability
- ✅ Powered by Google Search Data
- ✅ TAM, CAC, LTV, Sales... calculation
- ✅ Know what customers are looking for
- ✅ Ready in 20 seconds
Using CheckFa.st has streamlined my product validation, saving me time and money. It's an essential tool for any founder who wants to build something people actually want.

Jan-Oliver Seidenfuss
Indie Developer and Founder
RealFakePhoto ($10k/m) & Spexia
See how it works
Watch a quick demo of CheckFa.st in action

What data is in each analysis?
Receive an Excel (.xlsx) file with adaptable values
Market Analysis
Marketing Analysis
Profit & Loss Statement
Google Keywords
You are three simple steps away from unveiling your products potential
1
Enter your idea
Briefly describe your idea in a few words.
2
Market Demand Check
We assess how many people are searching for a product like yours.
3
Market & Financial Analysis
We calculate TAM, sales estimates, P&L statement and more.
Any questions?
Find answers to common questions about our analysis
What is CheckFast?
What do I get exactly?
Are the numbers in the analysis trustworthy?
What if I run into issues?
What types of product ideas can I submit?
Build something people want
Find out if people are looking for your product