Code · Vendor site 2026-10-04
Firebase Authentication is Google’s hosted identity service for apps, providing SDKs and UI libraries for email/password, phone, and federated sign-in providers. It targets multi-platform clients and integrates with the broader Firebase build and run product suite.
Mobile, web, and game teams that want managed sign-in without operating their own identity servers.
Authentication pricing is usage-based across Spark and Blaze plans rather than a single flat monthly USD product price.
Firebase Authentication combines hosted identity services, client SDKs, and optional FirebaseUI components so apps can add secure sign-in across platforms without building auth infrastructure from scratch.
What it can do
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Sign-in methods | Product copy lists email/password, phone auth, Google, Apple, X, Facebook, GitHub, and additional federated providers. | Facts sourced | 2026-10-04 |
| UI components | FirebaseUI is described as a customizable open-source UI flow for sign-in and sign-up across web and mobile. | Facts sourced | 2026-10-04 |
| Implementation speed | Marketing states teams can stand up a full authentication system, including complex cases like account merging, in under ten lines of code. | Facts sourced | 2026-10-04 |
Understand the total cost
Free
Free
Firebase pricing lists no-cost Spark plan usage for Authentication, with metered charges for some services such as phone auth in paid tiers.
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Firebase Authentication is Google’s hosted identity service for apps, providing SDKs and UI libraries for email/password, phone, and federated sign-in providers. It targets multi-platform clients and integrates with the broader Firebase build and run product suite.
Firebase pricing lists no-cost Spark plan usage for Authentication, with metered charges for some services such as phone auth in paid tiers.. This record lists ongoing free access; check the plan limits before starting.
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Product page describes backend services and SDKs to authenticate users; Firebase also documents REST and client SDK APIs in its developer docs.. API access and subscription access may have different terms; consult the linked sources.
Authentication pricing is usage-based across Spark and Blaze plans rather than a single flat monthly USD product price.
No retained pricing changes yet. A current price alone does not establish a historical trend.
Reviewed vendor source
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