Burrow

Burrow is a free Expo starter for apps that sell subscriptions on the web rather than through the app stores, where store rules allow it. It includes Clerk for sign-in with email codes and social providers, a Stripe-hosted checkout opened in the browser, an entitlement check on app launch, a settings screen, and a small Hono API for webhooks deployable to any Node host.

It is opinionated about avoiding store fees for products such as B2B tools and companion apps. The docs are honest about which app categories can do this. The limitation: the license forbids redistributing the kit, there is no in-app purchase fallback, and consumer apps that need store billing will need to add RevenueCat.