GTM Sauce

Bank Statement Converter · PDF bank statement to Excel converter

Build a one-week MVP, then buy Google search ads to see if people use it

Visitors started uploading bank statements immediately

Workedvalidationpaid-search

What they did

Hit the problem himself (bank only gave PDF statements; he wanted years of data in Excel). Wrote a Kotlin console app for his own bank, generalized it by testing on his other banks and friends' banks, and had a friend build a Next.js UI. Built in about a week, bought a domain, launched, then bought Google Search Ads to send traffic. Shows it to the target audience, not friends and family ('they'll just lie to you'). If an MVP takes 1-2 weeks, just build it rather than validating first.

What happened

People immediately started uploading bank statements, validating the problem.
Stage
launch
Effort
About one week with a friend
1:35
“So, me and a friend worked on it for about a week. We got a domain, we launched it, and then we bought Google Ads to get people to start clicking into the domain, and immediately, people started uploading bank statements, which kind of validated the problem, you know.”
Angus Cheng
3:08
“Try to get it in front of your target audience, whoever they are. Don't show it to your friends and family. You know, they'll just lie to you, and they're probably not going to buy your product anyway.”
Angus Cheng

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