Do cloud functions cost money?

Cloud Functions includes a perpetual free tier for invocations to allow you to experiment with the platform at no charge . Note that even for free tier usage, we require a valid billing account. Cloud Functions uses Cloud Build to convert your function source code into an executable image.

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What is a Firebase app?

Google Firebase is a Google-backed application development software that enables developers to develop iOS, Android and Web apps. Firebase provides tools for tracking analytics, reporting and fixing app crashes, creating marketing and product experiment.

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