Auth0 vs OpenFGA: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Auth0 and OpenFGA side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Auth0
Identity platform for developers
Best for you if:
- • You want easy integration
OpenFGA
Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
Best for you if:
- • You want a fully free tool (Auth0 requires payment)
| At a Glance | Auth0 | OpenFGA |
|---|---|---|
Starts at | Free plan, paid from $35/mo, billed monthly Essentials plan | Free 100% free |
Category | Identity & Access Security | Security Identity & Access |
Rating | 4.5/5 G2 4.3 · Capterra 4.7 424 reviews | n/a |
Free plan | Yes | Yes |
Watch out for | Overage pricing at $0.07/MAU applies per user beyond the base limit. | n/a |
Choose Auth0 or OpenFGA?
Choose Auth0 if
- You want easy integration
- You want many features
- You work in identity & access, not security
Choose OpenFGA if
- You want a fully free tool (Auth0 requires payment)
- You want highly scalable and performant for authorization checks
- You want flexible modeling language supports various access control paradigms
- You work in security, not identity & access
In-Depth Analysis
Auth0
Identity platform for developers
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).
Watch out
Overage pricing at $0.07/MAU applies per user beyond the base limit.
Strengths
- Pro: Easy integration
- Pro: Many features
- Pro: Great docs
Weaknesses
- Con: Expensive at scale
- Con: Complex pricing
Key features
OpenFGA
Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
OpenFGA's pricing is exceptionally generous, as it is entirely free.
Strengths
- Pro: Highly scalable and performant for authorization checks.
- Pro: Flexible modeling language supports various access control paradigms.
- Pro: Open-source and backed by the Cloud Native Computing Foundation (CNCF).
- Pro: Easy integration with existing applications via SDKs.
Weaknesses
- Con: Requires Docker for quick local setup, which might be an initial barrier for some.
- Con: New users may need to learn the specific modeling language and concepts.
Key features
Plans and prices: Auth0 vs OpenFGA
| Tool | Plans and prices | Source |
|---|---|---|
| Auth0 |
| auth0.com/pricing read Oct 31, 2026 |
| OpenFGA |
| openfga.dev read Oct 8, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Auth0 pricing and OpenFGA pricing.
Key Takeaways
Auth0
- Choose if you want identity platform for developers
OpenFGA
- Choose if you want fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Only Auth0 has a published user rating (4.5/5 from 424 reviews); OpenFGA has none we can show.
- Auth0 starts at $35/mo, billed monthly; OpenFGA has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Auth0 and OpenFGA compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Only Auth0 has a published user rating (4.5/5 from 424 reviews); OpenFGA has none we can show. Auth0 starts at $35/mo, billed monthly; OpenFGA has no public paid plan price on file. Both have a free plan.
What are Auth0 and OpenFGA used for?
Auth0: Identity platform for developers. OpenFGA: Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
What does Auth0 cost vs OpenFGA?
Auth0's cheapest paid plan is Essentials at $35/mo, billed monthly; it also has a free plan. OpenFGA is free. Prices read on the vendors' pricing pages, latest check Oct 31, 2026.
What's the main difference between Auth0 and OpenFGA?
Auth0's main strength: easy integration. OpenFGA's main strength: highly scalable and performant for authorization checks.