Developer Tools
Auth0
Identity platform for applications.
What it is
Auth0 is a mature identity platform covering login, social providers, enterprise SSO and fine-grained authorisation, now part of Okta. It covers the awkward parts most teams underestimate: enterprise SSO connections, MFA policy and tenant-level rules. The cost profile is the usual objection, since monthly active users climb faster than expected once consumer signup is open.
Auth0 pricing
Auth0 publishes 3 plans. Paid tiers start at $35/mo, and a free tier is listed alongside them.
| Plan | Price | What the vendor’s page says |
|---|---|---|
| Free | $0/mo | Free: up to 25,000 MAUs, 1 custom domain, passwordless, unlimited social connections, 5 organisations, 1 enterprise connection |
| Essentials | $35/mo | Essentials from $35/month (B2C) or $150/month (B2B) at 500 MAUs |
| Professional | $240/mo | Professional from $240/month (B2C) or $800/month (B2B) at 500 MAUs |
Prices read from the vendor's own pricing page on 2026-09-08. Vendors change plans without notice — check the source before you budget. Source
Cheaper alternatives to Auth0 — same category, ordered by verified starting price.
Key features
Social and enterprise connections
Federates logins from social providers and customer SAML or OIDC identity providers.
Rules and actions
Runs custom logic during login to shape tokens and enforce policy.
MFA and anomaly detection
Adds step-up factors and blocks credential-stuffing attempts.
Strengths and trade-offs
What works well
- Handles enterprise SSO requirements that block deals
- Extensive protocol and standards support
- Well documented and widely known
Where it falls short
- Expensive as active users grow
- Configuration surface is large
- Migration away is difficult once embedded
Who it is for
Companies that need enterprise identity features and compliance, not just a login form.
Pick it or skip it
Pick Auth0 if
- Apps under 25,000 monthly active users — the Free plan includes a custom domain, passwordless and 5 organisations
- Consumer apps that outgrow Free: B2C Essentials starts at $35/month for 500 MAUs
- B2B SaaS that needs enterprise connections and unlimited organisations: B2B Essentials from $150/month
Skip it if
- You need B2B features on a small budget — B2B plans cost roughly four times the B2C plans at the same MAU
- Your MAU count is large: paid plans are priced per MAU tier from 500 upward
- You need compliance and SLAs: Enterprise is quoted by sales
Our verdict
The safe answer for enterprise identity. For a consumer app with simple needs it is more platform than you need.
Closest alternatives we track
Same category, ordered by verified starting price.
Frequently asked questions
- Is Auth0 free, and what does it cost after that?
- Auth0's Free plan covers up to 25,000 monthly active users with a custom domain, passwordless login and 5 organisations. Paid plans are priced per monthly-active-user tier starting at 500 MAUs: Essentials from $35 a month for B2C apps or $150 for B2B, and Professional from $240 (B2C) or $800 (B2B). Enterprise is quoted by sales.
- How much does Auth0 cost?
- Auth0 publishes 3 plans: Free at $0/mo, Essentials at $35/mo, Professional at $240/mo. Every figure is read from the vendor's own pricing page; the pricing section above shows the source sentence for each tier.
- Does Auth0 have a free plan?
- Yes. Auth0 offers a free tier with limits; paid plans unlock higher usage or team features.
- Who is Auth0 best for?
- Companies that need enterprise identity features and compliance, not just a login form.
- What are the main drawbacks of Auth0?
- The trade-offs we noted: Expensive as active users grow; Configuration surface is large; Migration away is difficult once embedded.
- When should you not use Auth0?
- Skip Auth0 if: You need B2B features on a small budget — B2B plans cost roughly four times the B2C plans at the same MAU; Your MAU count is large: paid plans are priced per MAU tier from 500 upward; You need compliance and SLAs: Enterprise is quoted by sales.
What we checked
- Public APIOffers a documented API you can build against.Yes
- Mobile appHas a native app for iOS or Android, not just a mobile website.No
- Open source / self-hostableSource is open and the tool can be run on your own infrastructure.No
- SSO (SAML)Supports SAML single sign-on on at least one plan.Yes
“Not checked” means exactly that — we have not verified it, and we do not guess.
Evidence and freshness
Status: Vendor pricing page verifiedReviewed: 2026-09-08
- Auth0 — Pricing ↗
Checked 2026-09-08 · Supports: Free: up to 25,000 MAUs, 1 custom domain, passwordless, unlimited social connections, 5 organisations, 1 enterprise connection, Essentials from $35/month (B2C) or $150/month (B2B) at 500 MAUs, Professional from $240/month (B2C) or $800/month (B2B) at 500 MAUs, Enterprise contact sales; B2B Essentials adds unlimited organisations and 3 enterprise connections
Limit: Vendor pricing page was reviewed by an editor on this date; this record is not a ToolCompare benchmark. Prices and limits change.
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