Head to head
Microsoft Entra External ID vs Firebase Authentication
Both platforms are scored with the same methodology and the same category rubric. Nothing on this page is influenced by advertising.
49/100Higher score | 45/100 | |
|---|---|---|
| Category rank | #5 | #7 |
| Confidence | Medium confidence | High confidence |
| External Reputation | 71 | 80 |
| AI Authority | 31 | 11 |
| Web Authority | 27 | 21 |
| Expert Assessment | 63 | 65 |
| TOP10 User Score | — | — |
| Pricing | Not published — the vendor pricing page rendered every dollar figure as '$-' on retrieval; the paid rate above 50,000 MAUs is stated only as 'per Monthly Active User' · free tier: Core offering free for the first 50,000 monthly active users (MAUs) | $0.0055 per MAU/month above 50,000 Tier 1 MAUs (Blaze plan, pay-as-you-go) · free tier: Spark plan: no payment method required; other authentication services (email, social, anonymous) included at no cost; Phone Auth listed as 'Not applicable'. With Identity Platform: 50,000 MAUs free and 50 SAML/OIDC MAUs free. |
| Pricing model | Usage-based (Monthly Active User metering) with free allowance and paid add-ons | Usage-based (two plans: no-cost Spark and pay-as-you-go Blaze) |
| Best for | Enterprises already running Microsoft Entra, Microsoft 365 and Azure that need partner and supplier guest access with governance, or customer-facing apps under 50,000 MAUs where password and social sign-in suffice without metered SMS. | Consumer-facing mobile or web products with standard email/social/phone sign-in needs, especially teams already committed to Firestore or the wider Firebase/Google Cloud stack, and startups whose user base fits inside the 50,000 free MAU allowance. |
| Avoid if | You need a firm published price before engaging sales, run a high-volume consumer app dependent on SMS OTP, need governance on a pure consumer external tenant, sit outside the Azure ecosystem, or weight depth of peer review evidence heavily. | You sell enterprise SSO (SAML/OIDC billed at $0.015/MAU after 50 free users), need deep customization of login flows or fine-grained authorization, run high-volume SMS auth in expensive regions, require contractual data residency, a published SLA or a named compliance attestation, or have a hard multi-cloud portability mandate. |
| Markets | Enterprise, Mid-Market, Public Sector, SMB | Startups, SMB, Mobile and web app developers, Enterprise (via Identity Platform) |
| Founded | — | — |
| Headquarters | — | — |
A higher TOP SCORE means more of the evidence favours that platform on this methodology — it is not a recommendation, and it does not account for your specific requirements. Advertisers are never declared the winner of a comparison.