Instead of charging doctors for its valuable productivity tools, Doximity offers them for free to maximize user engagement. This creates a highly concentrated, valuable audience of physicians, which is then monetized through targeted advertising from pharmaceutical companies, its primary revenue source.

After realizing most users creating casual polls for lunch spots would never pay, Polly found its premium market. They targeted users responsible for expensive, high-stakes events like company all-hands and sales kickoffs, where the value of instant feedback was undeniable and justified the cost.

Hera's explosive growth came from organic word-of-mouth, with YouTubers making videos voluntarily. The founder's philosophy is that the best marketing is no marketing; a product that solves a real pain point spreads naturally. Paid marketing is seen as a 'tax' for not having achieved strong PMF.

To maximize the impact of community engagement, Wiz offers tangible, status-enhancing rewards. After completing a difficult hacking challenge, users receive a custom-made certificate of excellence. This praises their skill and gives them a professionally valuable artifact to share, turning a single engagement into widespread, user-driven promotion.

StatusGator retains a free plan because its value—an outage alert—is unpredictable and may not occur during a short trial. The free plan acts as a long-term nurturing tool, converting users months or even years later when they finally experience the 'aha' moment.

Polly's core viral loop wasn't just about initial adoption. They discovered that 12% of users who first interacted with the product by responding to a poll would then become creators themselves, creating a compounding, multi-generational growth engine within organizations.

As a freemium product with millions of users, Polly struggled to identify its true buyers. By adding simple "book a demo" links and feedback request emails into the onboarding flow, they generated hundreds of valuable conversations that clarified their monetization path and ideal customer profile.

When a tool gets massive attention but users aren't willing to pay (like Trust MRR), pivot the business model to advertising. Create scarcity by offering a limited number of ad slots and rewarding early advertisers with lower prices. This builds FOMO and generates more reliable revenue.