Teachable

Teachable offers a free plan that lets you host unlimited courses with zero upfront cost. When you make a sale, you pay $1 plus 10% of the transaction amount, so you only pay when you actually earn revenue. This pay-per-sale model has made Teachable popular with independent creators and small businesses since its launch in 2013.

Best for creators just testing market demand or starting without capital to invest. Compared to platforms charging flat monthly fees, Teachable's transaction-based pricing means zero startup costs and transparent pricing directly tied to your actual income.