Auth0 by Okta vs. Firebase

Auth0 by Okta

auth0.com/

Auth0 is Okta's B2C identity management solution. It's an all-in-one package, with social login, bot detection, UI components, anonymous users, single-sign-on, MFA etc. The free tier comes with 7,500 MAUs. That said, it's relatively expensive and 20,000 MAUs will cost you $1400/month.

Firebase

firebase.google.com/

Google's Firebase is an entire app development platform that's packed with features.It comes with storage, cloud functions, monitoring and, of course, user authentication. The free tier comes with 50,000 MAUs. Beyond that pricing start at $0.0055/MAU and goes down to as low as $0.0025/MAU as you scale to millions of users. Firebase authentication supports email and password auth, phone auth, magic links, two-factor authentication and social identity providers - mainly Google, Google Play Games, Facebook, Apple, Microsoft, Twitter, GitHub and OAuth access tokens.

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Auth0 by Okta
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Firebase
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Pros

  • Offers passwordless, social, and multifactor auth
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  • Extensive documentation and community support
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  • Breach detection and brute-force protection
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Cons

  • Free tier has restrictions on active users and features
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  • Higher tiers can be expensive
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Pros

  • Easy to use
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  • Low price per monthly active user
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  • Generous free tier
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  • Easy SMS authentication
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Cons

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