As health tech gets more competitive, a strategy companies use to stand out is providing their products for free. They’re betting this will help build up a large and loyal base of users who will be willing to pay later once they grow accustomed to it. It’s a classic playbook used by companies such as OpenEvidence and OpenAI (and many, many companies across tech before them). The big question, though, is how to make money while it’s free. Health tech’s newest unicorn, Forus, says it found an answer that will keep it free for healthcare providers to use indefinitely.