I guess it depends on the model, I can think of 2 examples: 1- A service that feeds on your custom data/integrations: Something like Algolia where you can limi

I guess it depends on the model, I can think of 2 examples: 1- A service that feeds on your custom data/integrations: Something like Algolia where you can limit to a usage quota without worrying about time because once onboarded, creating a trashable second free account is a pain (or not possible at all) 2- A service that is stateless or relies on generic data, think currency exchange API. Limiting by time will only cause users to just create an account every $X amount of time to keep using the free-tier.