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CloudTweaks
Customer Identity (CIAM)

Firebase Authentication

$ BudgetFree · Last reviewed May 2026

Firebase Authentication is Google's service for adding user sign-in to apps, with support for email, social, and phone providers. It is aimed at developers building on Firebase, and is especially popular for mobile and web applications. The service supports passwordless and phone-based sign-in, social login, and multi-factor authentication, and includes a generous free tier, with the Identity Platform tier adding enterprise features and per-monthly-active-user pricing. It holds SOC 2 and ISO 27001 compliance. Delivered as a closed-source, cloud-only managed service, it integrates tightly with the rest of the Firebase platform.

ciamfree-tiergoogledeveloper-friendlymobile

Overview

Founded
2014
Pricing tier
Low
Startup-friendly
Yes
Enterprise-ready
Yes

Customer identity

Passwordless
Yes
Social login
Yes
Multi-factor auth
Yes
Free tier
Yes: Generous free tier; Identity Platform tier adds enterprise features.
Open-source
No
Self-hostable
No

Categories & compliance

Categories

Compliance

SOC2ISO27001
Attributes are sourced facts; rankings are derived from them by a transparent scoring engine. “Verified” is a vendor-claimed badge and has no effect on ranking.