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Cybersecurity · head to head

Auth0 vs BigID

Auth0 logo

Auth0

Cybersecurity

Secure access for everyone

From
Free
Free plan
Yes
Visit Auth0Full review
BigID logo

BigID

Cybersecurity

Data discovery and classification across cloud, on-premise and unstructured stores

From
On request
Free plan
No
Visit BigIDFull review

The short version

  • Auth0 is an identity platform for builders.
  • Auth0 starts at $35/mo; BigID prices on request.
  • Only Auth0 lists universal login; only BigID lists structured and unstructured scanning.
  • Where Auth0 falls short: free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Auth0 and BigID actually diverge.

Attributes where Auth0 and BigID differ
AttributeAuth0BigID
Starting priceFreeOn request
Free tierYesNo
PlatformsWeb, iOS, AndroidWeb, API, Self-hosted

Identical on both: category (Cybersecurity).

Not yet recorded: pricing model for Auth0, founded for BigID.

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Auth0

  • Universal login
  • Social login
  • Multi-factor authentication
  • Passwordless
  • User management
  • Anomaly detection
  • Extensibility
  • Machine to machine

Only in BigID

  • Structured and unstructured scanning
  • Identity correlation
  • Data security posture management
  • Access intelligence
  • Privacy request support
  • Retention and minimisation
  • AI data controls
  • Policy and remediation workflow

What people use each for

The jobs each tool is most often brought in to do.

Auth0

  • B2C authenticationnot BigID
  • B2B authenticationnot BigID
  • B2E authenticationnot BigID
  • API securitynot BigID
  • Mobile app securitynot BigID

BigID

  • A bank that has to prove which of thirty year old file shares contain customer identifiers before a data centre migrationnot Auth0
  • A privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s recordsnot Auth0
  • A security team wanting to find sensitive data sitting in publicly readable object storage buckets before an attacker doesnot Auth0
  • A company building retrieval augmented AI that must exclude regulated personal data from the index it feeds to a modelnot Auth0

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Auth0

  • Free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that
  • Advanced features like MFA and RBAC only available on paid Essentials tier and above
  • Ownership by Okta introduces risk that independent product roadmap may change

BigID

  • Pricing scales with data sources and volume, so the cost rises exactly as the estate you need to scan grows, and the modules shown in a demo, including AI security posture and headless deployment, are frequently separate licences that appear only in the final quote
  • Scanning large unstructured estates is slow and computationally expensive, so most organisations sample rather than scan everything, which reintroduces uncertainty into the very question they bought the tool to settle
  • Classification accuracy on messy unstructured content requires tuning, and out of the box false positives on things like reference numbers create a large triage backlog that a small governance team cannot clear
  • It discovers and reports but does not remediate, so realising value requires a separate process and often separate tooling to actually delete, restrict or move the data it flags
  • It is built for large enterprises and both the price and the administrative overhead are disproportionate below a few thousand employees, where a lighter DSPM tool covers the security use case for far less

Pricing, plan by plan

Auth0

Free
  • FreeFree
    • Up to 25,000 monthly active users
    • Basic authentication
    • Email/password login
  • Essentials (B2C)$35/mo
    • Unlimited MAUs beyond free tier
    • Multi-Factor Authentication
    • Role-Based Access Control
  • Professional (B2C)$240/mo
    • All Essentials features
    • Advanced security
    • Custom branding

BigID

On request
  • BigID PlatformOn request
    • Priced by number of data sources and data volume
    • Discovery and classification core
    • Optional DSPM, access intelligence and AI security modules licensed separately

Which should you pick?

Choose Auth0 if

  • You need universal login.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want social login.
Auth0 review

Choose BigID if

  • You need structured and unstructured scanning.
  • You work on Web, API, Self-hosted.
  • You also want identity correlation.
BigID review

Questions people ask

Is Auth0 or BigID better?
Neither clearly leads. Auth0 starts at Free and BigID at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Auth0 or BigID?
Auth0 has a free tier; the other does not. Paid plans start at Free for Auth0 and On request for BigID.
Does Auth0 or BigID run on more platforms?
Auth0 runs on Web, iOS, Android. BigID runs on Web, API, Self-hosted.
Can I use Auth0 for free?
Yes. Auth0 has a free tier, so you can try it without paying. BigID starts at On request.
What is Auth0 best used for?
Auth0 is most often used for b2c authentication, b2b authentication, b2e authentication, api security. Of those, b2c authentication and b2b authentication are not what BigID is typically brought in for.
What can Auth0 do that BigID cannot?
Auth0 covers Universal login, Social login, Multi-factor authentication, Passwordless. BigID covers Structured and unstructured scanning, Identity correlation, Data security posture management, Access intelligence.

Answered from the vendors’ own pages

Auth0: How much does Auth0 cost?

Auth0 has a Free tier for up to 25,000 monthly active users (MAUs). Paid plans start at $35/month (Essentials B2C) and scale to $240/month (Professional B2C) and higher for Enterprise. Pricing scales with MAU usage.

Source
BigID: What does BigID cost?

It is quoted by data source count and volume. Reported contracts run from roughly 15,000 to 175,000 US dollars a year, and add-on modules such as AI security posture are licensed on top.

Auth0: Does Auth0 include Multi-Factor Authentication?

No. MFA, RBAC (Role-Based Access Control), and premium support are not included in the free tier and require upgrading to paid Essentials plans or higher.

Source
BigID: Does it handle unstructured data?

Yes, and that is its main advantage. It classifies data in files and shares and correlates findings back to individuals, not just to data types.

Auth0: Is Auth0 independent or part of a larger company?

Auth0 was acquired by Okta in May 2021 for $6.5 billion. It now operates as a subsidiary business unit within Okta, but maintains its own brand and operations.

Source
BigID: Will it delete the data it finds?

Not by itself in most deployments. It identifies and routes findings; deletion and remediation happen through your own processes or connected systems.

Auth0: Who should use Auth0 vs Okta?

Auth0 is developer-focused and serves customer identity use cases (B2C). Okta serves workforce identity (B2B) and has broader enterprise features. Auth0 now serves both markets post-acquisition but maintains its developer-friendly positioning.

Source
BigID: Is it a privacy tool or a security tool?

Both are sold from the same discovery core. Buyers increasingly come from security wanting data security posture management rather than from legal wanting privacy.

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