The Bottom Line
- Price
- From $35/mo (free plan available). Compare plans
Key facts
- Industry-leading identity platform
- Authentication and authorization as a service
- Trusted by 14,000+ companies
Pros
- Easy integration
- Many features
- Great docs
Cons
- Expensive at scale
- Complex pricing
What is Auth0?
Available on: Web
Ratings Across the Web
Auth0 holds an aggregate rating of 4.5 out of 5 from 424 reviews across G2 and Capterra, last checked September 17, 2026.
Ratings aggregated from independent review platforms. Learn more
Key Features
- Universal Login
- Social login
- MFA
- SSO
- Organizations
- Actions
- Attack protection
- 100+ integrations
Pricing Plans
Free TrialPricing checked Oct 11, 2026
| Plan | Price | Details |
|---|---|---|
| Free | $0 | Getting started
+1 more Show less
|
| Essentials | $35/per month | Basic needs
+1 more Show less
|
| Professional | $240/per month | Growing apps
+2 more Show less
|
| Enterprise | Custom | At scale
+2 more Show less
|
Is Auth0 worth the price?
Auth0's free tier at 25,000 MAUs is the most generous in the identity space, far ahead of Firebase Auth (free at 50K MAUs but with fewer features) and Clerk (500 MAUs free).
The problem is the scaling curve: once you exceed base MAU limits, the $0.07/MAU overage rate creates exponential cost growth. Auth0 is excellent technology with a pricing model that penalizes growth, so plan your migration threshold carefully.
Hidden Costs & Gotchas
Overage pricing at $0.07/MAU applies per user beyond the base limit.
B2B Essentials limits you to 3 enterprise SSO connections and Professional to 5.
SMS-based MFA is not included in the base price.
The free plan lacks separate development and production environments. Running auth against production data during development is a real compliance and security risk that most teams eventually pay to fix.
Custom database connections and Machine-to-Machine (M2M) tokens are only available on Professional and above, not Essentials. Many B2B apps need M2M tokens for service-to-service auth.
Auth0 Actions (serverless extensibility) have execution limits that vary by plan. High-traffic apps may need to upgrade plans purely to avoid Action throttling, not for MAU reasons.
Migrating away from Auth0 is painful. User password hashes are not exportable in most configurations, meaning a migration requires forcing all users to reset passwords, a significant churn event.
How Auth0's pricing compares
At $240/mo, billing unit not specified, Auth0 is the most premium of its 4 comparable direct competitors.
Entry paid plan, monthly. Pricing checked Oct 11, 2026.
Reviews
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Across 424 verified user reviews on G2, Capterra
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Best Auth0 Alternatives
Top alternatives based on features, pricing, and user needs.
App development platform by Google
Enterprise identity management
Open source Firebase alternative
Enterprise identity security solutions
Authentication for modern apps
Streamline global customer onboarding with seamless ID verification and compliance
Backend authentication by Google
Open-source identity and access management
Still deciding?
Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.
Explore More
Auth0 FAQ
How does Auth0 simplify the implementation of authentication for developers?
Which teams would benefit most from using Auth0?
Can Auth0 support various login methods for users?
How is Auth0 priced?
What kind of trade-offs should be considered when choosing Auth0?
How does Auth0 compare to Firebase Authentication?
Source: auth0.com