Android Question Firebase phone number authentication have a cost?

Looks like there is a free developer\testing quota that you get each month. And there are various paid plans if your app has a lot of users.

See 'Pricing' section:

scsjc said:

I just saw the library: https://www.b4x.com/android/forum/threads/firebase-phone-number-authentication.114218/ and is really nice.
But I wanted to know if anyone knows if there is a cost to use this firebase authentication service by SMS?

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according to the firebase price list, free until the limit in the table ...
but I would have to do tests ...

Lucas Siqueira said:

Firebase Pricing

Get started with Firebase at no cost, and then scale worldwide to millions of users, paying only for what you use.

firebase.google.com

according to the firebase price list, free until the limit in the table ...
but I would have to do tests ...

Products	Spark Plan Generous limits to get started Free	Blaze Plan Calculate pricing for apps at scale Pay as you go checkFree usage from Spark plan included*
A/B Testing		Free
Analytics		Free
App Indexing		Free
Authentication Phone Auth - US, Canada, and India help Phone Auth - All other countries help Other Authentication services	10k/month 10k/month check	$0.01/verification $0.06/verification check

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thanks

I understand that:
with the "spark plan" (free) ... every month is 10k correct verification for all countries.

My idea is to use it for the authentication of new app installations. "I wish it were 10,000 a month"