问题
Where can I find info on firebase authentication pricing? Is there any fee to use it, which tier, is there a threshold?
It's not even mentioned on the pricing page at all
回答1:
Authentication pricing is not mentioned on the pricing page at all because there isn't a fee to use Firebase Authentication. As a result, there is no threshold for doing that.
来源：https://stackoverflow.com/questions/44161195/which-pricing-tier-mentions-firebase-authentication