Josh Haynam and Matthew Clark co-founded Interact, an interactive quiz maker, while in college. The idea stemmed from their desire to create personalized customer experiences through quizzes. After years of bootstrapping, Interact now generates $3 million in annual recurring revenue (ARR), and their product is used by millions of people worldwide.

Viktor Hanacek, a solo entrepreneur, created Picjumbo, a free stock photo website generating $120,000 annually. With a background in design, photography, and WordPress coding, Hanacek personally manages the platform, offering thousands of photos for free use. Picjumbo earns revenue through premium memberships, advertising, and selling photo bundles, proving the viability of his idea and success as a sustainable business.