Top Auth & Identity

Authentication platforms, judged on standards support, security record, migration difficulty and cost per active user.

Platforms analysed: 12
Last updated: 1 Sept 2026
Methodology: TOP SCORE™ 1.1
Data confidence: 24 high34 medium

Organic ranking

Top Auth & Identity

Ranked by TOP SCORE™. Not for sale.

Sort byTOP SCORE External Reputation AI Authority Web Authority Expert Score TOP10 User Score

Confidenceall high medium

WorkOS (AuthKit)

Developer-first enterprise identity for B2B SaaS

TOP SCORE

51/100

↓5.4

B2B SaaS companies with an enterprise sales motion and ACVs comfortably above ~$1,500/year per SSO customer that need SAML, SCIM and audit logs shipped in weeks, especially where MAU volume is high but the paid connection count is modest.

AI Authority37

External Reputation69

Web Authority35

Expert Score61

TOP10 Users—

View profile Compare Official site ↗Enterprise SSO from $125/connection/month (third-party sourced; vendor pricing page not retrievable this session) · free tier: AuthKit/User Management free to 1,000,000 MAU, including email/password, social auth, Magic Auth, MFA, bot protection, identity linking, org modeling and domain verification; staging SSO and Directory Sync connections are unbilledHigh confidence

FusionAuth

Self-hostable, API-first CIAM for engineering teams

TOP SCORE

49/100

↓6.9

Engineering-led B2C or mid-market B2B SaaS teams that need data sovereignty or on-prem CIAM, are comfortable with OAuth2/OIDC concepts, and want an API-first platform they can start free and later move to managed hosting without switching vendors.

AI Authority30

External Reputation74

Web Authority23

Expert Score62

TOP10 Users—

View profile Compare Official site ↗Starter from $162/mo (billed annually, at the page default of 1,000 MAUs), community-forum support only, basic hosting included · free tier: Community — free, unlimited, self-hosted with core authentication features and community support (forums, Slack, GitHub); passkeys/WebAuthn and biometrics reportedly require registering a free Community licenceHigh confidence

Firebase Authentication

Managed consumer sign-in SDKs for mobile and web apps

TOP SCORE

45/100

↑3.1

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.

AI Authority11

External Reputation80

Web Authority21

Expert Score65

TOP10 Users—

View profile Compare Official site ↗$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.High confidence

Amazon Cognito

Usage-billed CIAM for teams already building on AWS

TOP SCORE

44/100

↓16.9

Engineering teams already running on AWS that are building consumer or B2C applications with social/direct sign-in, either below 10,000 MAU (free) or above roughly 500,000 MAU on Lite, and with in-house capacity to wire up Lambda triggers, IAM, KMS and SNS/SES.

AI Authority0

External Reputation79

Web Authority35

Expert Score60

TOP10 Users—

View profile Compare Official site ↗Lite: $0.0055 per MAU above the free tier (first band), $0.0046 per MAU next band — AWS example 950,000 MAUs = $4,405/month · free tier: 10,000 MAU/month per account or AWS Organization on Lite and Essentials (does not expire); 50 MAU/month for SAML 2.0/OIDC federated users on any tier; identity pools free of charge; no free tier on Plus, none for M2M token requests, and none in AWS GovCloud (US) RegionsHigh confidence

Stytch

API-first authentication and fraud prevention for developers

TOP SCORE

42/100

↓11.4

Engineering-led teams wanting programmatic auth control across both consumer and B2B enterprise tenants, especially those needing SAML SSO and SCIM self-service for their own enterprise customers.

AI Authority13

External Reputation67

Web Authority27

Expert Score62

TOP10 Users—

View profile Compare Official site ↗Not published · free tier: G2 users note a free entry-level price; contents of the free plan not verified this sessionHigh confidence

Frontegg

Embeddable CIAM and identity layer for B2B SaaS

TOP SCORE

42/100

↓15.4

Seed-to-Series-B B2B SaaS companies with natively multi-tenant products replacing homegrown auth, who want embedded admin portal, tenant-scoped roles and enterprise SSO at low or zero initial cost — especially teams that shortlisted Okta or Auth0 and found their multi-tenancy inadequate.

AI Authority1

External Reputation81

Web Authority18

Expert Score60

TOP10 Users—

View profile Compare Official site ↗$0/month (Pay as you go); no per-MAU, per-connection or per-token rate published · free tier: Pay as you go at $0/month: fully customized hosted login, 7,500 monthly active users, 5 enterprise connections (SSO/SCIM), unlimited organizations, custom domain; 1 environmentHigh confidence

How this category is scored

Every platform here is scored against the same five components. The Expert Assessment component uses a rubric written specifically for auth & identity.

Developer Experience
How quickly a competent engineer gets to production.
Reliability
Uptime record, incident history and how failures are communicated.
Performance
Latency, throughput and behaviour under load.
Pricing & Predictability
Cost at real usage, and whether the bill can surprise you.
Ecosystem & Portability
Integrations, standards, and how hard it is to leave.
Security & Compliance
Access control, certifications and data handling.
Support
Response quality when production is broken.

Sources currently active: Product Hunt, Apple App Store, Google Play, Vendor Documentation, TOP10 Editorial Research, TOP10 AI Visibility Panel, TOP10 Citation Discovery, TOP10 Ratings Refresh, VIZS AI Visibility, TCS Citation Intelligence, G2, Trustpilot, Capterra, TrustRadius, Software Advice. How sources are weighted.