Auth0 is a Developer identity and authentication platform by Okta, Inc. (acquired 2021). This profile pulls together Auth0's ratings across the major review sites, its company and funding details, leadership, features, pricing, and the latest news, with every external source cited at the bottom.
About Okta, Inc. (acquired 2021)
Auth0 is a developer-focused identity and authentication platform founded in 2013 by Eugenio Pace and Matías Woloski in Bellevue, Washington. The platform provides authentication, authorization, and user management for web and mobile applications through SDKs and APIs, allowing developers to add login (social, passwordless, MFA, SSO) without building it from scratch. Okta acquired Auth0 in 2021 for $6.5B and now markets it as the Okta Customer Identity Cloud (CIAM) — distinct from Okta Workforce Identity. Auth0 remains developer-first with its own SDKs and documentation. The platform is used by over 18,000 organizations including Siemens, Pfizer, and Bloomberg.
| Category | Developer identity and authentication platform |
| Company | Okta, Inc. (acquired 2021) |
| Founded | 2013 |
| Headquarters | Bellevue, Washington, US (Okta: San Francisco) |
| Industry | Software Development · Identity & Access Management |
| Team size | Part of Okta (~6,000) |
| Ownership | Acquired by Okta (2021, $6.5B) |
| Founder / CEO | Eugenio Pace (CEO) and Matías Woloski |
| Specialties | Authentication, authorization, SSO, MFA, social login, CIAM, developer identity |
| Website | auth0.com |
Find Auth0 on: Wikipedia · Crunchbase · LinkedIn · G2 · Capterra
Auth0 ratings across the web
Aggregated from the major review platforms. Each links to the source.
Rating breakdown
Per-category scores from G2 and Capterra, ~800 reviews, 2025-2026.
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What people say about Auth0
Our synthesis across ~800 G2 and Capterra reviews, 2025-2026. No fabricated quotes, this is the consistent pattern across reviews and third-party analyses.
Most praised
- Best documentation of any authentication platform; Quickstarts actually work
- Social login (Google, GitHub, Apple, etc.) takes 30 minutes to add
- Organizations feature handles B2B multi-tenancy cleanly
- Free tier is genuinely useful for production apps under 25K users
Most cited complaints
- Pricing scales steeply beyond the free tier; large user bases are expensive
- Post-Okta acquisition, some users report slower feature development
- Actions (custom logic) has performance overhead vs. self-managed solutions
What we found testing it
What's great
- Cleanest developer SDK library in the CIAM segment: SDKs for 30+ languages and frameworks, rules engine for custom logic, and a login-flow customization layer that most CIAM tools charge extra for
- Generous free tier covers 25,000 monthly active users with MFA, social login, passwordless, and custom domains included
- Machine-to-machine authentication and API authorization are genuinely mature, not bolted-on; ideal for multi-service SaaS architectures
Watch-outs
- Pricing tier jumps are steep: free to $35/mo (Essentials), then Professional at $240/mo; the per-connection model in some tiers becomes painful when you have 30+ enterprise customers each counted as a separate SSO connection
- Post-Okta acquisition, developers on Reddit and Hacker News [consistently cite](https://securityboulevard.com/2025/09/top-10-auth0-complaints-developers-post-on-reddit-analysed/) declining product quality, slower documentation updates, and support response degradation
- Enterprise SSO (SAML and OIDC connections per enterprise customer) is priced per-connection in a way that penalizes SaaS companies with mid-market customers; WorkOS is the cheaper alternative at that scale
Auth0 funding & ownership
| Round | Amount | Date | Lead investor |
|---|---|---|---|
| Series F | $120M | 2020 | Salesforce Ventures |
| Acquisition | $6.5B | 2021 | Okta |
Extremely strong. Okta ownership and $6.5B acquisition validates market position. Developer-first CIAM is a growing category. Long-term stability is assured.
Auth0 features & integrations
Security & compliance
| Standard | Availability |
|---|---|
| GDPR | Yes |
| HIPAA | Yes (paid plans with BAA) |
| SOC 2 Type II | Yes (Type II) |
| SSO / SAML | Yes (machine-to-machine and enterprise SSO) |
Integrations: AWS, Azure, GCP, Salesforce, GitHub, Google Workspace, Office 365, Slack, Twilio (MFA), Stripe, and HubSpot.
Auth0 leadership
Auth0 pricing
| Plan | Price | Best for |
|---|---|---|
| Free | $0/mo | Up to 25,000 MAUs, unlimited logins |
| Essential | From $35/mo | Growing apps, custom domains |
| Professional | From $240/mo | Advanced features, enterprise connections |
| Enterprise | Custom | Large apps, dedicated support, SLAs |
The catch: Auth0 charges per Monthly Active User. Free: 25,000 MAUs. Essential: $35/month (100 MAUs included). Professional: $240/month (extended features). Enterprise: custom. A consumer app with 100K users would pay roughly $1,500-$2,000/month.
Auth0 alternatives & where it appears
Featured in our guides
Auth0 product changelog
What Auth0 has actually shipped, summarized from its own release notes and dated. Not auto-generated, updated as part of our freshness checks.
- February 1, 2026
Fine Grained Authorization GA
Relationship-based access control (ReBAC) for granular permissions.
Source - October 1, 2025
- February 1, 2025
Latest Auth0 news
Auto-pulled from Google News, refreshed on each deploy. Headlines link to the source.
- Entra ID vs Okta vs Auth0: Pricing & Feature Compare - tech-insider.orgThu, 20 Aug 2026
- Incode adds biometric verification to Auth0 password resets - Biometric UpdateFri, 03 Jul 2026
- The Best Identity and Access Management Providers for 2026 - solutionsreview.comThu, 08 Jan 2026
- 6 Enterprise SSO Integrations That Actually Secure AI Coding Tools - Augment CodeFri, 24 Oct 2025
- Handling authentication and identity with Neo4j and Auth0 - Neo4jFri, 15 Apr 2022
- Identity authentication startup Auth0 raises $103M as another Seattle company reaches unicorn status - GeekWireMon, 20 May 2019
Auth0 FAQs
Is Auth0 the same as Okta?
Auth0 is now the Okta Customer Identity Cloud (CIAM), focused on adding authentication to applications. Okta Workforce Identity is the separate enterprise SSO product for employees. Same parent company, different products for different use cases.
How does Auth0 compare to AWS Cognito?
Auth0 has significantly better developer experience, documentation, and social login support. Cognito is cheaper at scale and integrates natively with AWS services. If you're AWS-native, Cognito can work; otherwise Auth0's DX wins.
Sources
Every external figure on this page traces to a public source, last collected on the dates shown.
- Auth0 website — Product and pricing (accessed 2026-09-02)
- G2 Auth0 reviews — User reviews (accessed 2026-09-02)