Vungal

Jack Smith and his co-founders started with a completely different idea—a cross-platform app store featuring videos instead of screenshots. After about four to six weeks at the Angelpad incubator with demo day approaching, they realized they needed to pivot. An investor mentor told them something powerful: "Don't pitch your idea. Just call 20 prospective customers and ask them about their biggest challenges."

So they did. The answer was unanimous from app developers: "We know how to build apps, but we don't know how to get users." This was the real pain point.

Instead of continuing down the wrong path, Jack's team prototyped six different business ideas in two weeks, creating fake landing pages and testing them with potential customers. One idea involved getting reviews on app review sites—but when they offered it at a discount ($20 instead of $150), nobody converted. People said it was great, but took no action.

Then came the serendipitous moment. While trying to record a meeting with an investor, they accidentally opened a sound recorder app that auto-played a Coke video ad at full volume. Jack had an epiphany: "What if we had videos like this, but advertising other games and apps instead?"

When they pitched this concept to those same app developers—"You can have a movie trailer for your game shown inside other apps, just 15 seconds"—the response was immediate and overwhelming. Developers wanted to be their first customers, committing $5,000-$10,000 in ad spend on the spot.

The mentor running the incubator initially dismissed them. He'd worked at Google early on and believed they couldn't compete with Google and Facebook's decade of advertising experience. But Jack stood his ground in the bathroom late one night, realizing they'd done exactly what the mentor asked—talked to customers about real pain points. They ignored his skepticism and moved forward.

What made Vungal revolutionary wasn't the technology—it was the pricing model. The entire industry charged CPM (cost per thousand impressions), borrowed from TV advertising. Jack realized app developers didn't care about impressions. They wanted users. So Vungal pioneered CPI (cost per install): "Pay us a dollar every time someone installs your app. It doesn't matter if 10 people or 100,000 see the ad."

This insight—abstracting what the advertiser actually wants—became the foundation of a business that could scale across hundreds of thousands of websites and mobile apps, eventually generating billions in impressions monthly.

Vungal sold for hundreds of millions in gross revenue. With the company keeping 60% of revenue (after paying out 40% to publishers), the unit economics were exceptional. The business generated over $100 million in EBITDA on hundreds of millions in revenue—a profitability profile rarely seen in venture-backed startups.

Jack's success came from launching 12-18 months after the iPhone App Store launched into a market experiencing explosive growth. He wasn't searching for "an advertising business" to start—he was searching for "emerging industries and their biggest problems." The lesson: beginner's mind often beats expert consensus when disrupting an industry.