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.

Instead of charging for all job placements, maintain a free tier to maximize candidate flow. Then, add a high-ticket fee for a small subset of personally-screened, 'blue checkmark' candidates. This creates a significant new revenue stream without disrupting the core acquisition model.

Initially, Shopify charged a percentage per sale. This attracted low-volume hobbyists but repelled serious merchants who would face high fees. This failure was a powerful signal, forcing a pivot to a subscription model that better aligned with the needs of their true target market.

Deliver's growth stagnated until they shifted from complex, variable fees to a simple flat rate. This treated pricing not as a billing model but as a product feature that solved the customer's core need for financial predictability, which became their primary growth catalyst.

The founder of Practice by Numbers envisions shifting from selling software to selling outcomes, potentially charging a percentage of a dental office's revenue. This aligns the company's success directly with its customers' financial performance, transforming the relationship from a vendor to a true growth partner.

AI company Sierra uses an outcomes-based model, charging clients only for successful resolutions. CEO Bret Taylor explains this forces his team to prioritize rapid, effective deployment ("go-live process") over traditional sales cycles, as revenue is directly tied to customer value, not software licenses.

The company's core value proposition stems from a non-obvious market inefficiency: doctors have roughly 30% of their schedules open due to last-minute cancellations and no-shows. ZocDoc acts as a yield management platform, filling this perishable inventory, which benefits both doctors' businesses and patients seeking quick access to care.

To make the sales pitch easier and align incentives, Uplane charges a low fixed fee to cover basic costs and earns most of its money from a variable fee tied to client success (e.g., a percentage of ad spend). This de-risks the purchase for the customer, as Uplane only profits when the client profits.

By aggregating millions of users, ZocDoc acts as a collective bargaining unit for patients. It uses its marketplace power to reward providers for patient-friendly behavior (e.g., price transparency, better hours) with better visibility, proving more effective at driving change than punitive government regulations.